In general. when I start Edge, I have 2 pinned tabs and I usually add more tabs later, everything seems to slow down Edge in general. Even when I type in the address bar. Uninstalling GroupBy fix the problem.
So far it's the only software that does that on my system.
Other browsers like Chrome and Firefox (Quantum) does not have this issue.
Hope this helps.
If you need me to try anything let me know.
System config:
AMD Ryzen 1800x
Gigabyte Gamin 5 with 32gb ram
1tb SSD primary, 2tb SHHD secondary
Vega 64 GPU with crimson 17.11.1
Windows 10 Fall Creator Update 64bit
Eset Smart Security 11
I have this list of Stardock application loaded.
Star10, Fence, ShadowFX, Deskscapes, WindowsFx, WindowsBlinds. No skin loaded at the moment.