MUSESCORE TAKES VERY LONG TO OPEN

Hi I have had this problem before, but cannot remember how it was fixed. Today I got a popup asking me to update some things and after the update Musescore took a loooong time to open. Last time it was caused by MDL and I remember that today I updated MDL again. So, please tell me how to fix this. Thanks guys, enjoy the day.
Jerome Dempsey