Not happening here. Quite the opposite in fact.
Most applications, including calibre and particularly MS Office, have been noticeably snappier in recent months. I've not changed a thing hardware-wise, and I'm running the same suite of background applications… which leads me to suspect it must be something MS did in Windows 10.
Windows 10, Calibre 6.7.1, NVIDIA drivers are circa 2017.
BR
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