@rmbell34 I also use the 8BitDo SN30 Pro+. The problem with the Switch mode is, rumble/vibration/haptic feedback doesn’t work (for games that support this feature). This only works in Windows (X-Input) mode. For this mode to function properly, you need to install/update the xpadneo driver. This should fix the long loading times and can be done through the RetroPie-Setup script. However, in Windows mode the star and home buttons are not supported.
Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first