@jeromeisdabeastcould you check youre audio please if there is an issue with it atm!
Fix 1: Disable Audio Effects
The audio effects can make your experience more enjoyable, but it definitely requires much CPU usage. Just disable it step by step.
Step 1: Right-click the speaker-like icon at the bottom right corner of the taskbar and choose Sounds.
Step 2: Under Playback tab, right-click your audio device and choose Properties.
Step 3; Go to Enhancements tab, check Disable all sound effects option, and click Apply and OK to save the changes.
Fix 2: Disable Volume Adjustment
Windows can automatically adjust the volume of different sounds when you are using your computer to place or receive telephone calls. This feature is also proven to be a factor to cause audiodg.exe high CPU usage issue. So, you can also try disabling it.
Step 1: Open the Sounds window as displayed above.
Step 2: Switch to Communications tab and choose Do nothing option.
Step 3: Click Apply and OK to save the changes you’ve made.
Fix 3: Change Audio Sample Rate
In addition, some users successfully resolved audiodg.exe high CPU by changing the audio sample rate. You can also have a try. Just open Sounds window and go to the Properties of your audio device. Under Advanced tab, select another sample rate from the drop-down list, and then click Apply and OK to confirm the operation.
Fix 4: Run Audio Troubleshooter
If the audiodg.exe is taking up much CPU usage, perhaps your audio device runs into certain problems. In this case, you can use the built-in tool to troubleshoot the problems with audio.
Step 1: Press Windows + I to open Settings.
Step 2: Go to troubleshoot, other troubleshooters and choose Playing Audio
Step 3: Click Run button.
Let us know what it did for you !