Performance in PHP applications depends on caching, DB optimization, and code design.
1. Use Opcode Cache
Enable OPcache to store precompiled script bytecode, reducing load times drastically.
2. Optimize Queries
Use indexes, avoid SELECT *, and leverage query caching when possible.
3. Asynchronous Tasks
Offload heavy tasks to queues using tools like Laravel Horizon or Swoole.
Following these principles can improve performance by up to 60%.