Thank you for your feedback. We have received feedback from multiple users about the vulkan renderer. After investigation, we learned that the problem is closely related to the Android baseline we use for compatibility with VR mode. Solving this problem will have to wait until our next large-scale upgrade, and there is no specific plan for the time of this upgrade. For your game, it is recommended that you use the OpenGL renderer to play. According to the tests conducted by the product team, with the powerful performance of XR2, most games using the Vulkan renderer will not have a significant increase in frame rate compared to OpenGL. You can try it again. Thank you for your support of Pimax Portal products.