JAY You can not compare Apache and openlitespeed, with aaPanel you should also use nginx and no apache, besides Apache is more for static pages and nginx for dynamic pages like wordpress. LiteSpeed is also a completely different approach than Apache and Nginx, each has its own advantages and disadvantages - Apache, Nginx are free and LiteSpeed costs money, unless you only use 2 GB Ram for your server, you only have 3-10 hits on it Day at LiteSpeed. On the other hand, there are enough comparisons in the net that you can explain in a more informative way than I can tell you here in a few words.