Cannot get low latency with USB audio gear

[StuartR]

Thanks, StuartR. I ran LatancyMon, but could not  paste a screenshot in a New Reply, my post attempt failing due to an excessive message length error (Is there a link to a tutorial on using forums for meeting. I am entering the red text portion from the screenshot.
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Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns appearing as drop outs, clicks or pops. One or more DFC routines that belong to a driver running in your system appear to be executing for too long.  At least one detected problem appears to be network related. In case you are using a W-LAN adapter, try disabling it to get better results. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates.
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I read the first three chapters of Glitch Free, the audio and computer for dummies overview. The section comparing the processor to a chef made me sad, since I haven’t gone out to eat for some time. Chapter 4 starts getting into the nuts and bolts of tuning. while I have come across tuning suggestions here and there, it’s good to have a comprehensive treatment of the subject and I will be working my way through it.

I am sorry that I am not able to share more results from LatencyMon, but wanted to send this quick reply out.

Thanks for your help.

The fact that the text in the report is in red indicates your PC, in its current state, isn't capable of handling real-time audio. Please post the text report. Don't use a quoted reply so as not to include all your previous text which is where the posting error is coming from.

Some initial things you'll need to do:

1) Change your PC power plan to maximum.
2) Disable WiFi and Bluetooth
3) Be sure your PC or laptop, is running on AC power... never on battery.
4) Disable Background apps.
5) Go to ADD/REMOVE programs and uninstall anything you don't need. Since you've had this PC a while I'd guess it's loaded with unnecessary apps, secondary antivirus tools,etc. Clean all this out.
6) Go to the vendor (Sony) site and be sure the latest BIOS and drivers are installed.

You never said what version of Windows you are running?

Then rerun LatencyMon (for at least 5 minutes) and compare the results.