I recently purchases an EOS R7 and have been practicing taking video footage. After uploading two short videos to my PC, I used the default player, Windows Media Player, to view them and they look good, even n full screen mode. However, if I view the same footage in Corel VideoStudio 2021 and CapCut, the movement is jerky (it's ok in the windowed view on VideoStudio. I also copied the footage onto a USB 3.2 drive and used this to play one of the video's using my TV, which was also jerky. I used the 4K mode, with the frame rate set to 50, and the shutter speed set to 125. I tried in full manual and auto modes, with the same result. I have not adjusted any of the other settings. My PC specs are AMD Ryzen 9 5900X, 32 GB RAM, GeForce RTX 3080 and 2TB M.2 SSD. Any idea why this is happening, please?