SELECT 
  vi_product_feature_variants.variant_id, 
  vi_product_feature_variants.position, 
  vi_product_feature_variants.color, 
  vi_product_feature_variant_descriptions.variant 
FROM 
  vi_product_feature_variants 
  LEFT JOIN vi_product_feature_variant_descriptions ON vi_product_feature_variants.variant_id = vi_product_feature_variant_descriptions.variant_id 
  AND vi_product_feature_variant_descriptions.lang_code = 'de' 
WHERE 
  vi_product_feature_variants.variant_id IN (
    39, 41, 44, 46, 47, 48, 49, 50, 51, 52, 53, 
    54, 55, 56, 45, 58, 59, 60, 61, 62, 63, 
    64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 
    74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 
    84, 92, 88, 89, 91, 93, 94, 95, 97, 98, 
    99, 100, 101, 102, 103, 104, 106, 108, 
    109, 110, 111, 114, 121, 112, 115, 117, 
    135, 136
  ) 
ORDER BY 
  vi_product_feature_variants.position ASC, 
  vi_product_feature_variant_descriptions.variant ASC

Query time 0.00080

JSON explain

{
  "query_block": {
    "select_id": 1,
    "filesort": {
      "sort_key": "vi_product_feature_variants.position, vi_product_feature_variant_descriptions.variant",
      "temporary_table": {
        "nested_loop": [
          {
            "table": {
              "table_name": "vi_product_feature_variants",
              "access_type": "ALL",
              "possible_keys": ["PRIMARY"],
              "rows": 186,
              "filtered": 37.09677505,
              "attached_condition": "vi_product_feature_variants.variant_id in (39,41,44,46,47,48,49,50,51,52,53,54,55,56,45,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,92,88,89,91,93,94,95,97,98,99,100,101,102,103,104,106,108,109,110,111,114,121,112,115,117,135,136)"
            }
          },
          {
            "table": {
              "table_name": "vi_product_feature_variant_descriptions",
              "access_type": "eq_ref",
              "possible_keys": ["PRIMARY"],
              "key": "PRIMARY",
              "key_length": "9",
              "used_key_parts": ["variant_id", "lang_code"],
              "ref": [
                "devvipiriscom.vi_product_feature_variants.variant_id",
                "const"
              ],
              "rows": 1,
              "filtered": 100,
              "attached_condition": "trigcond(vi_product_feature_variant_descriptions.lang_code = 'de')"
            }
          }
        ]
      }
    }
  }
}