OK, thanks for the feedback!
I haven't been able to test on a wide variety of machines so it's good to hear if it's having problems.
Choppy audio you say? Interesting. I wonder if that's caused by the performance in general, or is its own issue.
Did reducing the resolution help at all? That would at least narrow down if it's a CPU issue or something else.
My machine seems to be similar (but without a dedicated GPU) and it runs perfectly.