Hello to you all. The problem is known. YouTube videos play at accelerated speed so they become unwatchable. Do reboots again and again. But now thew problem affects all other macOS video and audio playback functions. Really fed up to reboot 2 - 3 times a day. Did all Google search says but problem is persistent. Should I wipe out everything and reinstall Catalina. My iMac can't run higher versions of OS.
Thanks million times
Thanks million times