I just realized. After I deleted my cookies and lost my data (I expected it to happen, but couldn't find the hidden file), I have improved a lot. I was B.A. rank 90 at level 1000, but now I'm only level 75 and I'm rank 28. Wow.
so annoying >.< my FPS is 35+ when normal, but when I play an arcade game, there is a sudden lag spike where my FPS drops to 16- (when I'm on low quality) This gets quite annoying right now, because I need to save up my green coins, but cant waste them on more arcade tokens. It would be nice if you are kicked out of a game for low FPS, you wouldn't lose your spent arcade tokens.
All games become easier once you know how things work.