Symfony can handle 660 requests/second and work great but you need to do some optimizations for that. Few Symfony sites are handling 1 billion requests per week without any issues. Its all about how you follow framework standards and optimize the site. Use Symfony forms carefully Symfony form is one of the most useful and complex features of Symfony framework. Forms can handle almost everything you are doing like sub-forms, the collection of fields, validation based on condition, reusable fields, auto data rendering and value selection for fields. In earlier Symfony 2 version there were some performance issue if you do not use proper symfony standards in forms. In the new version of Symfony they have optimized a lot. But think to use Symfony form if you really need it. Otherwise, you can use plain form also. Make sure there are no multiple Symfony forms on a single page. Start using stopwatch component Use stopwatch component so you can measure time which cod...