Hello, i've been trying to figure out how to run Theme Park with normal speed and can't seem to get the speed right. I have looked at several other posts about this same issue and have tried them, but still have problems. Here's the things i've tried

1.) Fixed cycles 10000, fixed cycles 7000, fixed cycles 5000 all with experimenting with CTRL-f11 and f12 keys.
i get it down to 1 percent, but thats too slow, and 6 percent is too fast.

2.) I've press R for hi-resolution mode and it does help but speed issue remains.

If theres anything else i can try, please let me know.