No. You are not right sam70. My computer is a laptop and it works well with this sound card. I found the reason and it was simple, but Presonus manufacturer didn't write about it in guide book inside of a package. The main problem was that USB 96 is a 2.0 USB type and most of laptops have now blue usb port which is called 3.0. When i plugged in USB 96 into it - that caused a crackling sound. I found one black usb port in my laptop which is 2.0 USB and the sound now is ok. I think that manufacturer could write about it in their user's guide.
Thanks for the anwser viktordudkevych . I have exactly the same problem, i have only USB3 ports on my laptop lenovo and all of them crackling with this audio card on Ableton 10 or 11. It's completly true, the manufacturer could write this in their user's guide.
What a shame !