Hey Yappie0110,
I know there are some limitations, before UEFN lots of devices were limited to 100, not all of them though, it would be of interest to know what UEFN can handle now.
I know there is a limit of 90 AI at one time (wildlife + creatures + guards) which calls for some enabling disabling.
Please keep us updated on your progress, it would be much appreciated by many.