I've been having issues with massive FPS drops and things not rendering since the patch. Examples include:

Huge FPS drops before meteors hit in the Ozma fight and the resulting enemies not rendering.

FPS drops / screen freezing during loading of heavily populated areas. Screen will blink black after 15-30 seconds and everything seems to be fine.

Player mounts, and sometimes the players themselves, not rendering after loading in to various zones.

Any help is appreciated.