That's objectively false. I use safari all day everyday and have never experience any of that stuff.
replyNever had this problem, been on Tahoe since it released. My safari tabs are buttery, silken smooth.
replyWorks fine for me. I wonder if you have some extension or script on one of the sites you use slowing down the tab closure.
replyI’ve been running the macOS 26.4 beta and have none of these issues.
replyI will say that 26.4 beta 2 was the first time I've regretting using betas since Sonoma beta 2. The Sonoma beta ruined the firmware on my machine and Apple had to replace the logic board; the latest Tahoe beta broke all networking on my machine and I had to erase the installation to fix everything. I've since dropped off the beta train for the time being.
replyI already left the beta train on my iPhone because I had too many issues getting my grocery apps to allow me to place orders without going to my laptop and doing it in a web browser.
This sounds like swap needing to be swapped in and then released. Check your memory usage.
replyI'm on an M4 Pro MacBook-- basically the fastest computer you could buy from Apple before today-- and opening/closing the tab sidebar in Safari on Tahoe takes multiple seconds, even if I have only 4-6 tabs open, and seems to drop to 5 FPS. It's comically bad.
replyIt's so bad I switched back to Chrome. I had thought Chrome had a major battery life penalty compared to Safari on Macs, but I checked more up-to-date info and apparently that's outdated.