I have been developing for the oculus quest for a while now and just recently (when I updated to UE4 4.25) I have had problems with performance at farther distances. When I have about 10 simple blocks in view with dynamic movement mode I have no problem with performance but when I get almost exactly 2000 cm/units away from the blocks then it instantly tanks my performance.
I tried with different movement types such as Static and stationary and when the blocks are using those movement settings there is no problem. So it only happens when the blocks are dynamic, in view, and at a distance of 2000 cm/units or farther.
This also only seems to happen when I’m testing it in the headset it self (Oculus Quest 1.) The game Im developing requires dynamic objects at all types of distances so I can’t just use a work around.