Verify check in SDL Trados Studio 2017 - extremely slow

Hello,

For the past month, we have been experiencing extreme lag with the Verify check in SDL Trados Studio 2017 to the point where we have had to do our QA checks elsewhere as our sessions have been freezing. Is this a known issue at SDL or what can be done to resolve it? This doesn't appear to be an issue with our 2015 licenses.

Thanks,

Steven