Make sure you are running PimaxXR OpenXR runtime, not the SteamVR. SteamVR is less efficient and also may carry to Crystal the resolution limit which was previously set for Reverb G2. Make sure you actually see a difference when changing resolution in OpenXR toolkit from let’s say 3800 x xxx, to 4700 x xxxx. If you can’t see a difference you may be capped by some setting or you may need glasses as the focusing distance of Crystal is closer vs. G2.
The G2 is actually quite sharp in it’s small sweet spot, the main advantage of Crystal is much bigger sweet spot, bigger FoV, better colors, blacks and brightness.