Its very difficult to convey the effect of latency without experiencing it. This video may help give you an idea what its like to fly with high latency.
For reference, glass to glass latency (camera lens to full frame in goggle) for HDzero is always 14ms (90FPS ) or 17ms (60FPS), regardless of signal strength. This is identical or even slightly better than analog.
WS and DJI results will vary depending on goggle, module, FPS, and mode; best case they can achieve low 30s at close range, worst case it gets closer to 100ms with perfect reception (degrading with weak signal). Note that the number in the goggle, even if accurate, does not account for the LCD latency. Mads did a good test, results here:
th-cam.com/video/d7gfLaCHU2w/w-d-xo.html
But he tested only on the bench with perfect signal strength.