https://www.windowscentral.com/assign-specific-processor-cores-apps-windows-10
So in my case (Windows 10):
1) Control-alt-calc and choose Task manager
2) Go to Details tab and right-click on MSACCESS.EXE
3) Choose SET AFFINITY
I think this will let the computer to use most energy/memory/effort only on that software.
I have not tested this yet.