Hi,
I'm sorry for your experience with Tray FM and let me thank you for taking time to give feedback of your experience in the forum.
I cannot, however, in any way reproduce this "resource hog" and CPU intense usage you describe, I have Tray FM running now for about an hour and playing takes about 0,1% to 0,3% of CPU usage and sits at a comfortable 5Mb (30mb Working set) of memory on Windows 10 Professional. I also use Windows 11 Pro without any issue.
Most likely some sort of software incompatibility at your end, which, as you might understand, I cannot do anything about.
In the end of the day Tray FM is available free of charge, so I'm sure no harm has been done.
Thanks again,
André SantosCarthago Software Support
https://www.carthagosoft.net