One thing i have noticed after having a pico 4 for around 2 weeks is that turning battery saver to ON in the headset under settings my image gets even better again. Its like it provides AA to the mfds and hud and they become so clear.
I honestly couldnt believe it, it makes no sense at all, and i see noone else talking about it!!!
Edit. Ive just seen it drops to 72hz in battery saver so i was seeing a clearer image as its 1/3 less traffic from pc >pico