Mine-imator gets progressively laggier to the point where I can't use it

[BeastyBoss_303 2]

This THING gets progressively more and more laggy (with my imported terrain).

At first I can sit at a decent 30 fps and then it eventually (slowly) drops down to 10 fps, this is horrible and I can't use this software in it's current state- I SHOULD be able to run Mine-imator with this exact terrain because I do so in regular minecraft, its my world and in said world I have 0 fps issues.

 

Also,

I run into an issue that teleports the bloody work camera down to a particular spot and then causes my movement to be *not opposite* but very very wrong (Think: trying to move up and forward moves you up and back) (really bro?).

 

Why cant Mine-imator just work??? For two ******* seconds, PLEASE.

And no, I am not in high quality rendering mode, I am in the simple flat rendering mode....