I search around but i cant seems to find a solution so i would like some advice/help.
Model : Legion 5 - 15ACH6H

Is there a way to reduce the cpu temp for my legion 5 when i run BDO with my power supply plug on. I tried changing the graphics to low and lowest but there isn't any difference in cpu temp where as setting in med / semi-high its still at 70-80 (usually sitting at 80) 

I tried without the power supply the graphic went down but the cpu temp was at 60-70 range. I did try to follow some reddit's guide to the power plan setting, but it doesnt change the temp as well. 

Help appricated thanks. 
 

You can try reducing the maximum processor state of the CPU:

Link with instructions: https://www.thewindowsclub.com/processor-power-management-windows

Just changing the state from 100% to 99% can greatly reduce the temp of your CPU. However, this might also severely affect your FPS, so it's best done when using lower graphics settings in BDO.

Thanks i will test that out