In Control Panel\All Control Panel Items\Power Options:

• Click Create new Power Plan
  • This creates a new plan based on how you have Balanced set
    In a Windows terminal (run as admin) Run the following commands:
• Set the PC to show Performance Boost Mode

powercfg -attributes SUB_PROCESSOR PERFBOOSTMODE -ATTRIB_HIDE

• Turn off Performance Boost Mode on Battery using the current battery profile

powercfg /setdcvalueindex SCHEME_CURRENT SUB_PROCESSOR PERFBOOSTMODE 0

• Set active

powercfg /setactive SCHEME_CURRENT

• Verify the setting (you should see "Current DC Power Setting Index: 0x00000000")

powercfg /query SCHEME_CURRENT SUB_PROCESSOR PERFBOOSTMODE

The above is based on:
I changed one hidden Windows setting, and my laptop saw 36% less battery drain
Add or Remove "Processor performance boost mode" in Power Options on Windows 11 | Windows 11 Forum