There are many errors on this DxDiag with all of your Elgato software, as well as your GPU drivers. Instead of trying to address each one of these, can you reboot, open Overwatch, play a game or two, then run another DxDiag and share it? I think your issue is related to a software conflict, which could be: your virtual audio cables, your Razer device, your GPU drivers, or the capture software you’re using (looks to have the most issues). HWMonitor, as suggested by Zhyxen will also help rule out any hardware performance issues, so it’s important to do that step, too.