What mac do you have now? How much free space on the SSD? What amount of physical ram?
I have the same issue. Anyone has a solution?
128 SSD (70GB Free)
I get this and it's 2020 now, and they've done mothing.
When dev tools is open, the fans are on and it crawls.
Without devtools, it's fine. And no other browser's devtools do this.