Why are some of the tabs at OpenStudio load so slowly? [closed]

savecancel

Hello, Does anyone know why some of the tabs open so slowly? For example, "Loads" is functioning properly, but the "Spaces" opens very long time, and the program frequently crashes. Is it the fault of too much space in the model? This problem makes it very difficult job. I must still wait to load up the program and it is very time consuming.