If you use Windows 10 20H2 and have experienced weird glitches in games, slowdowns, general issues, then please install the install the latest Cumulative Update Preview (KB5001391).
OutFox did not get that affected, however, but SM5.x/4/3.x and similar will have had possible input, sound and buffering issues. The update contains fixes for various bugs, including those that may have affected StepMania and other games. It appears as an “Optional Quality Update” in the Windows Update menu.
Also, if you use Nvidia GeForce graphics cards, we currently do not recommend using 460.XX (or newer) drivers, as they have been causing performance regressions and possible crashes on OutFox and SM.
If you need help or guidance on how to sort this yourself, please do not hesitate to contact one of the Team Rizu or staff members and we can guide you through the settings to sort out your playing experience.