Ok I did go into SKyMAXX Settings, did not change anything, and clicked on X. It loads and bam fps goes down to 9 where it was previously at 25. EDIT: I found out that there are some performance issues that I think can be fixed. When I fly on high altitude and the next "tile" of the map gets loaded, my FPS goes down to 5 since the weather is being regenerated/rendered. If I go to plugin enable/disable and disable and renable silverlining, my fps goes up to 25 and stays there until the next tile gets loaded again. Same thing happens when I load one airport, wait until the weather gets rendered and switch to a completely different airport. Reenabling the addon helps to fix the issue.