I've been using DeoVR on the Quest 2 for a few years without any problems. With the latest DeoVR version, the audio often drifts out of sync with the image and there are also occasional moments of lag and stutter. I'm playing back mostly 5K-8K 180LR videos stored on the headset. Some of the videos I've played on previous versions of DeoVR without any problem, and if I play them on Skybox player they all work perfectly.