imac pro performance

I am in need of a Parallels Desktop upgrade, because I REALLY need to start supporting Windows 11, and I can't have a Win11 VM on my current PD14. That said, I have avoided upgrading Parallels Desktop because, well, each new version has been and I have read too many horror stories of people...

Almost all websites that has internal search engines, like Expedia, Orbitz, Target, Amazon etc.. they don't work.. it just hangs when you try and search for a flight, a store.. whatever.. Any clue how to remedy this?

So does anyone know if Parallels can take advantage of the multiple cores in the new iMac pro? The new iMac pro has a slower clock speed than my late 2017 iMac but many more cores.? Will the iMac Pro be faster? How much? Anyone know of any benchmarking of this?