Cables suck, but you know what sucks more? Video streaming your VR view to your headset.
Inputs aren't even that delayed, it's the audio and video outputs that are delayed on the Quest 2. Not to even speak of the grainy mess and bitrates, or the extra CPU/GPU load from video encoding. If they didn't fix that for this headset then I recommend not bothering with it, unless it's that much cheaper than the Quest 2 (which it isn't).