Skype Performance Bug under Windows 8 x64 / endles...

Dear Developers,
please get rid of an annoying bug under Windows 8 x64 - this bug exists since several versions and still not fixed.
Summary:
After a while - maybe associated with energy saving options - a thread in Skype is getting more and more CPU time, causes by a thread always starts with ntdll!RtlGetCurrentPeb+0xf (see att.) <- what does this thread actually?
Results:
Heavy CPU usage, slowly Skype response - missing Messages. Only Skype restarts helps.
I will do more investigation if needed. Let me know.
Update:
The thread uninterruptedly reads from
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\MMDevices\Audio\Render\*
Appears to a not catched endless loop?
Attachments:
2.PNG ‏19 KB
3.PNG ‏89 KB

rsbrux wrote:
My Thinkpad originally came with Windows 7 Pro, but I have changed to Windows 8 in order to resolve problems with VSS.  OOB, both Windows 7 and Windows 8 gave me a "Desktop graphics performance" rating of 5.7.  Under Windows 7, upgrading to the latest Lenovo driver improved this to 6.1, leaving my HDD (at 5.9) as the limiting factor in performance.  Under Windows 8, however, replacing the Windows driver with the latest Lenovo driver has reduced "Desktop graphics performance" to 5.6!  What gives?
P.S. I just discovered a Power Options advanced power setting "Intel Graphics Power Plan", which was set to "Maximum Battery Life" for both battery and plugged in.  I changed it to "Maximum Performance" when plugged in, but the Windows experience Index (WEI) for "Desktop graphics performance" remains a mer 5.8.
After you changed the setting to "Maximum Performance" , did you run the WEI test again?

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