The Windows 11 Efficiency Mode applies to any .exe program and will reduce performance of the application. There appears to be no registry setting to turn this off. BUT it appears that most modern programs honor the --disable-features=UseEcoQoSForBackgroundProcess command line option.
To stop the efficiency mode for any .exe, create a shortcut to the exe then update the TARGET to include this flag. For Example, for ESRI's ArcGIS Pro software the Target in the shortcut would become:
"C:\Program Files\ArcGIS\Pro\bin\ArcGISPro.exe" --disable-features=UseEcoQoSForBackgroundProcess
This same pattern appears to work for a shortcut for to ANY .exe (e.g., works for your Chrome and Edge shortcuts).