Yeah – it's exhibiting that problem even in the technology preview, so this won't be getting better anytime soon :(
Expanding the card is noticeably laggy in Firefox as well (M1 MBP), only getting smooth results in Chrome, and even some of those, like the "Pokemon V" ones, lag a small bit
Expanding the card is noticeably laggy in Firefox as well (M1 MBP), only getting smooth results in Chrome, and even some of those, like the "Pokemon V" ones, lag a small bit