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SELECT 
  v.product_id, 
  v.feature_id, 
  v.value, 
  v.value_int, 
  v.variant_id, 
  f.feature_type, 
  fd.description, 
  fd.prefix, 
  fd.suffix, 
  vd.variant, 
  f.parent_id, 
  f.position, 
  gf.position as gposition 
FROM 
  cscart_product_features as f 
  LEFT JOIN cscart_product_features_values as v ON v.feature_id = f.feature_id 
  LEFT JOIN cscart_product_features_descriptions as fd ON fd.feature_id = v.feature_id 
  AND fd.lang_code = 'en' 
  LEFT JOIN cscart_product_feature_variants fv ON fv.variant_id = v.variant_id 
  LEFT JOIN cscart_product_feature_variant_descriptions as vd ON vd.variant_id = fv.variant_id 
  AND vd.lang_code = 'en' 
  LEFT JOIN cscart_product_features as gf ON gf.feature_id = f.parent_id 
  AND gf.feature_type = 'G' 
WHERE 
  f.status IN ('A') 
  AND v.product_id in (3963, 5249, 3957, 4002, 5198) 
  AND f.display_on_catalog = 'Y' 
  AND (
    f.categories_path = '' 
    OR FIND_IN_SET(166, f.categories_path) 
    OR FIND_IN_SET(250, f.categories_path) 
    OR FIND_IN_SET(328, f.categories_path) 
    OR FIND_IN_SET(341, f.categories_path) 
    OR FIND_IN_SET(402, f.categories_path) 
    OR FIND_IN_SET(404, f.categories_path)
  ) 
  AND IF(
    f.parent_id, 
    (
      SELECT 
        status 
      FROM 
        cscart_product_features as df 
      WHERE 
        df.feature_id = f.parent_id
    ), 
    'A'
  ) IN ('A') 
  AND (
    v.variant_id != 0 
    OR (
      f.feature_type != 'C' 
      AND v.value != ''
    ) 
    OR (f.feature_type = 'C') 
    OR v.value_int != ''
  ) 
  AND v.lang_code = 'en' 
ORDER BY 
  fd.description, 
  fv.position

Query time 0.00192

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "71.08"
    },
    "ordering_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "nested_loop": [
        {
          "table": {
            "table_name": "v",
            "access_type": "range",
            "possible_keys": [
              "PRIMARY",
              "fl",
              "variant_id",
              "lang_code",
              "product_id",
              "fpl",
              "idx_product_feature_variant_id"
            ],
            "key": "idx_product_feature_variant_id",
            "used_key_parts": [
              "product_id"
            ],
            "key_length": "3",
            "rows_examined_per_scan": 115,
            "rows_produced_per_join": 37,
            "filtered": "32.52",
            "index_condition": "(((`softwarepirmam_hewadelivard_cscart_4`.`v`.`product_id` in (3963,5249,3957,4002,5198)) and (`softwarepirmam_hewadelivard_cscart_4`.`v`.`lang_code` = 'en')) and (`softwarepirmam_hewadelivard_cscart_4`.`v`.`feature_id` is not null))",
            "cost_info": {
              "read_cost": "49.27",
              "eval_cost": "3.74",
              "prefix_cost": "53.01",
              "data_read_per_join": "28K"
            },
            "used_columns": [
              "feature_id",
              "product_id",
              "variant_id",
              "value",
              "value_int",
              "lang_code"
            ]
          }
        },
        {
          "table": {
            "table_name": "f",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY",
              "status"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "feature_id"
            ],
            "key_length": "3",
            "ref": [
              "softwarepirmam_hewadelivard_cscart_4.v.feature_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 3,
            "filtered": "9.53",
            "cost_info": {
              "read_cost": "9.35",
              "eval_cost": "0.36",
              "prefix_cost": "66.10",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "feature_id",
              "feature_type",
              "categories_path",
              "parent_id",
              "display_on_catalog",
              "status",
              "position"
            ],
            "attached_condition": "((`softwarepirmam_hewadelivard_cscart_4`.`f`.`status` = 'A') and (`softwarepirmam_hewadelivard_cscart_4`.`f`.`display_on_catalog` = 'Y') and ((`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path` = '') or (0 <> find_in_set(166,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`)) or (0 <> find_in_set(250,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`)) or (0 <> find_in_set(328,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`)) or (0 <> find_in_set(341,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`)) or (0 <> find_in_set(402,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`)) or (0 <> find_in_set(404,`softwarepirmam_hewadelivard_cscart_4`.`f`.`categories_path`))) and (if(`softwarepirmam_hewadelivard_cscart_4`.`f`.`parent_id`,(/* select#2 */ select `softwarepirmam_hewadelivard_cscart_4`.`df`.`status` from `softwarepirmam_hewadelivard_cscart_4`.`cscart_product_features` `df` where (`softwarepirmam_hewadelivard_cscart_4`.`df`.`feature_id` = `softwarepirmam_hewadelivard_cscart_4`.`f`.`parent_id`)),'A') = 'A') and ((`softwarepirmam_hewadelivard_cscart_4`.`v`.`variant_id` <> 0) or ((`softwarepirmam_hewadelivard_cscart_4`.`f`.`feature_type` <> 'C') and (`softwarepirmam_hewadelivard_cscart_4`.`v`.`value` <> '')) or (`softwarepirmam_hewadelivard_cscart_4`.`f`.`feature_type` = 'C') or (`softwarepirmam_hewadelivard_cscart_4`.`v`.`value_int` <> 0)))",
            "attached_subqueries": [
              {
                "dependent": true,
                "cacheable": false,
                "query_block": {
                  "select_id": 2,
                  "cost_info": {
                    "query_cost": "0.35"
                  },
                  "table": {
                    "table_name": "df",
                    "access_type": "eq_ref",
                    "possible_keys": [
                      "PRIMARY"
                    ],
                    "key": "PRIMARY",
                    "used_key_parts": [
                      "feature_id"
                    ],
                    "key_length": "3",
                    "ref": [
                      "softwarepirmam_hewadelivard_cscart_4.f.parent_id"
                    ],
                    "rows_examined_per_scan": 1,
                    "rows_produced_per_join": 1,
                    "filtered": "100.00",
                    "cost_info": {
                      "read_cost": "0.25",
                      "eval_cost": "0.10",
                      "prefix_cost": "0.35",
                      "data_read_per_join": "440"
                    },
                    "used_columns": [
                      "feature_id",
                      "status"
                    ]
                  }
                }
              }
            ]
          }
        },
        {
          "table": {
            "table_name": "fd",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "feature_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "softwarepirmam_hewadelivard_cscart_4.v.feature_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 3,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.89",
              "eval_cost": "0.36",
              "prefix_cost": "67.34",
              "data_read_per_join": "8K"
            },
            "used_columns": [
              "feature_id",
              "description",
              "prefix",
              "suffix",
              "lang_code"
            ]
          }
        },
        {
          "table": {
            "table_name": "fv",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id"
            ],
            "key_length": "3",
            "ref": [
              "softwarepirmam_hewadelivard_cscart_4.v.variant_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 3,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.89",
              "eval_cost": "0.36",
              "prefix_cost": "68.59",
              "data_read_per_join": "4K"
            },
            "used_columns": [
              "variant_id",
              "position"
            ]
          }
        },
        {
          "table": {
            "table_name": "vd",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "variant_id",
              "lang_code"
            ],
            "key_length": "9",
            "ref": [
              "softwarepirmam_hewadelivard_cscart_4.fv.variant_id",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 3,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.89",
              "eval_cost": "0.36",
              "prefix_cost": "69.84",
              "data_read_per_join": "10K"
            },
            "used_columns": [
              "variant_id",
              "variant",
              "lang_code"
            ]
          }
        },
        {
          "table": {
            "table_name": "gf",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "feature_id"
            ],
            "key_length": "3",
            "ref": [
              "softwarepirmam_hewadelivard_cscart_4.f.parent_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 3,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.89",
              "eval_cost": "0.36",
              "prefix_cost": "71.09",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "feature_id",
              "feature_type",
              "position"
            ],
            "attached_condition": "<if>(is_not_null_compl(gf), (`softwarepirmam_hewadelivard_cscart_4`.`gf`.`feature_type` = 'G'), true)"
          }
        }
      ]
    }
  }
}

Result

product_id	feature_id	value_int	variant_id	feature_type	description	variant	position
4002	667	0.00	5009	S	Antenna Type	Internal antennas.	260
3963	667		4936	S	Antenna Type	Internal omni directional antennas.	260
3957	667		4886	S	Antenna Type	4 × external omni directional antennas.	260
3957	657		5110	E	Brand	tp-link	0
5249	657		4743	E	Brand	Ubiquiti	0
5198	657		4743	E	Brand	Ubiquiti	0
4002	657		5110	E	Brand	tp-link	0
3963	657		5110	E	Brand	tp-link	0
3963	656		1559	S	Color	white	160
3957	656		1560	S	Color	Black	160
4002	656		1559	S	Color	white	160
3963	664		4901	S	Frequency Bands	2.4 GHz (up to 600 Mbps), 5 GHz (up to 1300 Mbps).	230
4002	664	2.40	5006	S	Frequency Bands	2.4 GHz (up to 400 Mbps), 5 GHz (up to 867 Mbps).	230
3957	664		4929	S	Frequency Bands	2.4 GHz (up to 574 Mbps), 5 GHz (up to 2402 Mbps).	230
3957	669		4932	S	Maximum Device Rate	Up to 3000 Mbps (574 + 2402 Mbps).	280
5249	669	3.50	6799	S	Maximum Device Rate	3.5 Gbps IPS throughput	280
5198	669	0.00	6711	S	Maximum Device Rate	Firewall throughput up to 3.5 Gbps; IDS/IPS throughput up to 3.5 Gbps	280
4002	669	0.00	5010	S	Maximum Device Rate	Up to 1,267 Mbps (400 + 867 Mbps).	280
3963	669		4903	S	Maximum Device Rate	Up to 1900 Mbps (600 + 1300 Mbps).	280
3963	668		4937	S	Maximum User Capacity	Up to 100 devices.	270
3957	668	0.00	4934	S	Maximum User Capacity	Up to 128 devices.	270
5249	668	0.00	6798	S	Maximum User Capacity	Supports over 1,000 concurrent clients	270
5198	668	0.00	6710	S	Maximum User Capacity	Supports thousands of users and devices (varies by deployment size)	270
4002	668		4937	S	Maximum User Capacity	Up to 100 devices.	270
4002	663		4891	S	Mounting Options	Tabletop placement (no wall mount).	220
5249	663	0.00	6795	S	Mounting Options	Rackmount (1U)	220
3957	663		4891	S	Mounting Options	Tabletop placement (no wall mount).	220
3963	663		4891	S	Mounting Options	Tabletop placement (no wall mount).	220
5198	663		2042	S	Mounting Options	Rack-mountable (1U)	220
3957	665		4926	S	Network Ports	1 × Gigabit WAN, 4 × Gigabit LAN.	240
5249	665	1.00	6796	S	Network Ports	1 × 10G SFP+ WAN, 1 × 2.5G RJ45 WAN, 8 × 1G RJ45 LAN (6 × PoE, 2 × PoE+)	240
5198	665	8.00	6708	S	Network Ports	8 × Gigabit RJ45 LAN ports, 1 × 10G SFP+ WAN port, 1 × 10G SFP+ LAN port, 1 × Gigabit RJ45 WAN port	240
4002	665	2.00	5007	S	Network Ports	2 × Gigabit Ethernet (RJ45) per unit.	240
3963	665		4935	S	Network Ports	2 × Gigabit Ethernet (RJ45).	240
5198	666	0.00	6709	S	Power Support	Internal 120/240V AC power supply with standard IEC power cable	250
4002	666	12.00	5008	S	Power Support	12V/1.2A power adapter.	250
3957	666		4930	S	Power Support	12 V DC ⎓ 1.5 A.	250
5249	666	0.00	6797	S	Power Support	AC Input: 100–240V, 50/60Hz; DC Input: 52V	250
3963	666		4898	S	Power Support	12 V DC ⎓ 2 A.	250
3957	662		4924	S	Wi-Fi Standard	Wi-Fi 6 (IEEE 802.11a/b/g/n/ac/ax), dual band.	210
3963	662		4890	S	Wi-Fi Standard	Wi-Fi 5 (IEEE 802.11a/b/g/n/ac), dual band.	210
4002	662	0.00	5005	S	Wi-Fi Standard	AC1300 (IEEE 802.11a/b/g/n/ac), dual band.	210