Laggy Hero Lab

[aw1231]

System Info:
MacOS Mojave Beta (10.14) (build 18A326g)
3.5 GHz Intel Core i7
16 GB memory
Graphics: Intel Iris Plus Graphics 650 1536 MB

I am considering purchasing Hero Lab with Pathfinder. As a test, I installed Hero Lab and used it in demo mode. I found it to be laggy with many instances of "beachballs", especially the further along I went in character creation. I closed all applications, and that didn't seem to help. I also checked Activity Monitor and Hero Lab was maxing out the CPU and not using very much memory at all (~400 MB). I also tried the Starter Edition which had similar results. I understand not having purchased the software (and also running a beta MacOS) I expect no support, but thought it was odd that my computer struggled even when no other applications were running, given its specs.