Oh wow, I had it all wrong.
For some reason I had it in my head that the UR22 was powered with an adapter!
I’m running the UR28M, maybe that’s why I assumed this, sorry.
I understand though, the unit must be attached directly to the computers USB port, being Bus powered, the loading effect of other devices could be significant.
Do you have any other peripherals attached via USB?
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Any effect by removing them if possible? -
Any effect by connecting the other USB peripherie via a powered hub?
Any improvement when running the laptop powered from mains?
If you deinstall the driver, then reinstall, connecting the UR22 to a different physical USB port socket, does this alleviate the problem?
I all fails you might report the actual USB subsystem chipset manufacturer.