Can't play properly any Video in source

Hi! My video in source is running veeeeery slow,can’t work with any video in. I turn on the settings. Anybody knows what can be the problem? Nvidia driver maybe? I tried OBS and touchdesigner and is very smooth but with Notch I cant. I’m using a capture card elgato hd60x via usb 3 but even with a webcam is very slow. Thanks