How do I get the best from my VR quest 2.

I see there are a few stickies for this forum but obviously things have moved on and so the stickies not so relevant.
I have just made the move to the quest 2 and I am wondering how to get the best out of it.
I have been doing a little research but most of the stuff on the net is false.
One thing I do not understand is slow downs. When you think all the PC has to do is generate 2 images and put them into the oculus then why the slow down. When gaming on my pc same games there is no slow down.
Great credit to hell blade and senuas sacrifice. Astonishing VR experience and well optimised for the task.
So, whats the rub?
Ty lads. บาคาร่าฝากถอนauto