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SELECT 
  cscart_profile_fields.*, 
  cscart_profile_field_descriptions.description 
FROM 
  cscart_profile_fields 
  LEFT JOIN cscart_profile_field_descriptions ON cscart_profile_field_descriptions.object_id = cscart_profile_fields.field_id 
  AND cscart_profile_field_descriptions.object_type = 'F' 
  AND lang_code = 'en' 
WHERE 
  1 = 1 
  AND cscart_profile_fields.profile_type = 'U' 
  AND cscart_profile_fields.field_id IN ('6', '7', '9', '32') 
ORDER BY 
  cscart_profile_fields.position

Query time 0.00068

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "10.49"
    },
    "ordering_operation": {
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "0.40"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_profile_fields",
            "access_type": "range",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "field_id"
            ],
            "key_length": "3",
            "rows_examined_per_scan": 4,
            "rows_produced_per_join": 0,
            "filtered": "10.00",
            "index_condition": "(`satishecarter_march_003`.`cscart_profile_fields`.`field_id` in ('6','7','9','32'))",
            "cost_info": {
              "read_cost": "9.53",
              "eval_cost": "0.08",
              "prefix_cost": "9.61",
              "data_read_per_join": "419"
            },
            "used_columns": [
              "field_id",
              "field_name",
              "profile_show",
              "profile_required",
              "checkout_show",
              "checkout_required",
              "partner_show",
              "partner_required",
              "storefront_show",
              "field_type",
              "profile_type",
              "position",
              "is_default",
              "section",
              "matching_id",
              "class",
              "wrapper_class",
              "autocomplete_type"
            ],
            "attached_condition": "(`satishecarter_march_003`.`cscart_profile_fields`.`profile_type` = 'U')"
          }
        },
        {
          "table": {
            "table_name": "cscart_profile_field_descriptions",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "object_id",
              "object_type",
              "lang_code"
            ],
            "key_length": "12",
            "ref": [
              "satishecarter_march_003.cscart_profile_fields.field_id",
              "const",
              "const"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 0,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "0.40",
              "eval_cost": "0.08",
              "prefix_cost": "10.09",
              "data_read_per_join": "313"
            },
            "used_columns": [
              "object_id",
              "description",
              "object_type",
              "lang_code"
            ]
          }
        }
      ]
    }
  }
}

Result

field_id	field_name	profile_show	profile_required	checkout_show	checkout_required	partner_show	partner_required	storefront_show	field_type	profile_type	position	is_default	section	class	autocomplete_type	description
6	firstname	Y	N	Y	N	N	N	Y	I	U	10	Y	C	first-name	given-name	First name
7	lastname	Y	N	Y	N	N	N	Y	I	U	20	Y	C	last-name	surname	Last name
9	phone	Y	N	Y	N	N	N	Y	P	U	40	Y	C	phone	tel	Phone
32	email	Y	Y	Y	Y	Y	Y	Y	E	U	50	Y	C	litecheckout__field--full	off	E-mail