Freezing in the game can most likely cause the game itself to slow down in framerate, repeat sounds, etc. Usually caused by un-focusing the window. Freezing happened in occurrence to many YouTubers who played it (CinnamonToastKen and Vinesauce Vinny, for example.) This will continue to happen in-game until it is restarted.
This can usually be resolved by changing the compatibility mode to Windows 95/98 for the game file's properties.