Severe framerate degradation when moving/turning on a Snapdragon X CPU and Adreno X1-45 GPU

Minecraft Java Edition experiences severe and persistent FPS degradation when moving around and/or turning the camera on a Windows PC using a Qualcomm Snapdragon X processor with the integrated Qualcomm Adreno X1-45 GPU.

The game initially has substantially higher FPS while standing still, but after a brief freeze/stutter associated with movement/rendering, FPS drops significantly and remains lower. The issue occurs in vanilla Minecraft and is not specific to Fabric or a particular mod.

The issue has been reproduced across multiple Minecraft versions and with both Vulkan and OpenGL rendering.

• Launch Minecraft Java Edition on a Windows PC with a Qualcomm Snapdragon X processor and integrated Adreno X1-45 GPU.

• Use a vanilla or modded instance.

• Create a singleplayer world or join a multiplayer one

• Stand still and observe the FPS.

• Move around the world and/or turn the camera into an area that has previously not been loaded.

• A brief freeze/stutter occurs and performance subsequently drops significantly.

• Continue moving/turning and observe that FPS remains substantially lower than the initial stationary FPS.

In a vanilla installation, approximate results were:

Renderer Vulkan standing still:~312 FPS after stutter/freeze:~100 FPS

Renderer: OpenGL standing still:~96 FPS after stutter/freeze:~30 FPS

Minecraft versions tested: 1.21.11, 26.1.2, and 26.2

Specs according to f3: Minecraft 26.2 (26.2/vanilla) Java: 25.0.4 CPU: 8x Snapdragon(R) X = X126100 - Qualcomm(R) Oryon(TM) CPU Display: 1920×1166 QUALCOMM Qualcomm(R) Adreno(TM) X1-45 GPU (GPU) Vulkan 1.3.295 Qualcomm Technologies Inc. Adreno Vulkan Driver Driver Build: f22d572733.104672aa9d4.1771926662