SELECT 
  go.grid_id, 
  go.options 
FROM 
  cscart_grid_options AS go 
WHERE 
  go.grid_id IN (
    '94', '95', '96', '116', '118', '119', 
    '120', '121', '122', '280', '279', 
    '335', '286', '284', '287', '285', 
    '281', '288', '282', '283'
  )

Query time 0.00100

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "go",
      "access_type": "ALL",
      "possible_keys": ["PRIMARY"],
      "rows": 40,
      "filtered": 50,
      "attached_condition": "go.grid_id in ('94','95','96','116','118','119','120','121','122','280','279','335','286','284','287','285','281','288','282','283')"
    }
  }
}