Hey,
I just recently bought the game. I really love the old school 2D-view plus the great amount of theming elements.
The only problem I have is the performing issue. I just started a couple days a new park, where I tried to theme a park with a lot of elements.
As you can see in the picture the park isn't really big yet, but the performance of the game went rapidly down, after ending the theming. The visitors and rides are moving really slow plus my iMac goes nuts.
Maybe some of u guys have the problem as well and can give me any advice - it would be cool to hear from you.
Cheers Alp
Adventure Park :o)