I have a similar issue. I have no major applications installed except Ableton Live 11 and Chrome. Scrolling through webpages is choppy and using Ableton is very choppy and laggy (Even with an empty arrangement). Performance is not the issue as I'm not even close to using these apps to the fullest extent.
Big Sur
Macbook Pro (15-inch, 2017)
3.1 GHz Quad-Core Intel Core i7
16 GB 2133 MHz LPDDR3
Radeon Pro 560 4 GB
Intel HD Graphics 630 1536 MB
SSD
zacharrow
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