No, I never got answers to my questions above, and don't have that specific Intel GPU to test on, and haven't seen it on any hardware I own.
I was having the same issue(gtx 1650) i fixed it with this method nvidia control panel>3d settings>manage 3d settings>program settings>playscii(i had to add the program)>vsynch off
hope it helps someone else.
Thanks for your work JP great program!
Oh interesting, thanks for sharing that info, I hope it's useful to others!
