For some reason, I have started to experience a major FPS drop when I use 3d courts. I used to always be able to run the game at 60 fps, now with 3d courts it runs at about 22-25 fps. Even with 2d courts it's at about 54. I have been modding the game, but I wouldn't think it would affect my fps. I've used both the Maxou patch and the ITST mod and the framerate doesn't change. I'm using a laptop with a 7th Gen i7 and I've been running the game without any graphics issues for 3 months.
I should probably note that about a week ago, the game would crash at times when I tried to change the resolution from the menus. I don't know if this is related. I've loved Tennis Elbow 2013 and want to continue to be able to play it at a high quality.