The greatest thing about Litespeed is that the server is really able to handle much more traffic than Apache and it can handle DDOS attacks more efficiently. In one research, an Apache server that had been going under from DDOS attacks was replaced by a Litespeed. While the Apache server crashed due to the attacks, the Litespeed server managed to withstand the attacks and remain its functionality. Also, Litespeed is able to handle configuration files and can support almost all of the popular control panels.

Apache server is completely free While you compare to LiteSpeed.Litespeed is more efficient..