Vibrant Visuals: FPS is capped at half the screen's refresh rate when v-sync is enabled

Summary:

When Vibrant Visuals and v-sync are enabled, the FPS is capped at half of the screen’s refresh rate. In my case, this issue only occurs when the refresh rate of my screen is set to 100Hz or 85Hz. At any refresh rate below that, the issue doesn’t occur. 144Hz is also reportedly affected.

Steps to Reproduce:

1. Have a 144Hz, 100Hz, or 85Hz monitor and a computer capable of running Vibrant Visuals at high FPS

2. Create a new world with the Vibrant Visuals experimental toggle enabled

3. Enable Vibrant Visuals

4. Observe the FPS

5. Repeat these steps but with v-sync disabled in options.txt (located in %userprofile%\AppData\Local\Packages\Microsoft.MinecraftWindowsBeta_8wekyb3d8bbwe\LocalState\games\com.mojang\minecraftpe)

Observed Results:

When v-sync is enabled, the FPS is capped at half the screen’s refresh rate.

Expected Results:

When v-sync is enabled, the FPS should be capped at the screen’s refresh rate.

V-sync enabled:

V-sync disabled:

System Specifications:

Monitor: MSI PRO MP223

CPU: Intel Core i5 12400F

GPU: AMD Radeon RX 6600

RAM: 16GB