Sometimes WebGL games struggle a bit if the browser doesn't have "Hardware Acceleration" enabled, but it might also just be because of all the art assets. Thanks for playing!
I got it to work, though I was getting weird glitches where visual elements didn't align- this was especially noticeable on the tutorial, though it was more of an issue when I didn't notice(until too late) where the culling line looked to be above the text but was below it.