Your GPU temp is a bit on the high side. I'd say it should remain under 60. That may be your issue. I'd like to hear from some others on this as I'm not an expert. I run my fans to keep mine under 55. That is, 56 starts red flag territory for me.
If you're willing to play around, try booting into safe mode and then disable your sound system. Reboot normal and see if these problems persist. Long shot but if nothing else works, you may as well try it.