Gantt software started lagging while using Apple M1

I’m not sure what defines “thinking” here but when trying to scroll left & right in a project that has 9 items in I see the CPU usage go from 44% to over 100%. Scrolling left & right works without any lag in an empty project if that helps.

I tested the above with both Java 11 and Java 17 and see similar CPU usage spikes.

Let me know if there’s anything more I can provide to help diagnose these issues