According to the log file, I’d been getting around 19 fps on the Watopia course. Not amazing by any means, but good enough for me. On the new Richmond course, I am usually around 7 fps, with a low of 5 and a high of 9. This is after dropping to the lowest resolution setting. Zwift is pretty much unusable at this point.
Surface Pro w/ Windows 10
3rd Gen Intel Core i5 Processor
Intel HD 4000 video