I have discovered a bug that when using parallel projection if you had set the large fov for games like elite dangerous and skyrim they look very blurry. You can only use normal fov and they look clear again.
I have noticed that in skyrim if I turn parallel projection off I can use large fov again and the image is clear, but that means the loading menus have double vision if you tilt you head (and the game’s bethesa splash screen)
Just want to leave this report for the Pimax software developers.
If anyone wants to test this turn parallel projection on a reboot pitool. Then Set normal FOV and reboot steam VR and check the game, then change to large fov and reboot steamvr and check the game.