If your CPU usage is not spiking or becoming a bottleneck, then your existing license is okay for your server.
Our web server will only use what it needs. Increasing the usable CPU's may not improve the current performance.
A top
command will reveal important information about how much resources different processes are taking on your server. (LSWS's process is called lshttpd, and LiteSpeed Web ADC's process is called lslbd
) A couple of these outputs are useful for determining if your installation needs access to more cores: