Super Mario Bros. X Forums

I wanted to share this and hopefully save some of you your time and nerves. There was a microstutter (see testufo.com to see what that looks like) in the fullscreen test of my level in the editor. On Windows 7, there was no microstutter, but since I imported my project to Windows 10, there has been. I spent hours of my free time over the last 2-3 days trying to remedy this with many methods. I can tell you that it very likely had nothing to do with my system or software. I believe it is an inherent problem in the SMBX program. I then vaguely remembered someone somewhere long ago in these forums or elsewhere suggesting to test your level in the Game mode and not in the Editor. I tried it, and my level played smoothly there.

TO SUM IT UP: Don't try to fix the microstutter in the Level Editor's fullscreen test mode, just test your level in the Game to see it best.