Apache MPM Module Configuration

I am trying to optimize the performance of webserver (apache). The current (default) MPM module on the server is Worker. Hardware Specification: CPU: 2 Cores RAM: 4 GB The default configuration under Home > Service Configuration > Apache Configuration > Global Configuration is: Start Servers: 5 Minimum Spare Servers: 5 Maximum Spare Servers: 10 Server Limit: 256 Max Request Workers: 150 Max Connections Per Child: 10000 Keep-Alive: ON Keep-Alive Timeout: 5 Max Keep-Alive Requests: 100 Timeout: 300
Referring to Apache's official documentation, these values are defaults for Prefork, not Worker. So obviously these parameters need to be tuned for optimal performance.