I don't really know what else to say, but hello! Oh right, the avatar max file size though, lol.
welcome @BobbyWibowo to Centmin Mod Community ! Keeping max avatar size low = faster page loading experience
Oh, we've got nearly-similar server and XenForo setup with the one I had on my Linode test server Got 99% PageSpeed score as well on that test server using the exact same XenForo style I used on my current forums. I have yet to wait for 2 months though before I can move my forums to Linode and enjoy that same speed again