I can’t help with your problem but 102% isn’t unusual. Your Mac has multiple cores in its processor and each is capable of 100% capacity so if you have four cores, the maximum capacity would be 400%.
I have only 3 extensions. i did what u said and no change, but… seems like its ok when I dont have too many tabs open… I had like 10 or so of which 3 or 4 were different exchanges refreshing all the time, plus some video playing etc so maybe this was the issue. thanks for help.
My point was to address the apparent surprise that CPU could exceed 100% which was clearly confirmed by CHMIELIX’s reply.
That said, I have two quad core Macs and I have frequently seen Brave use >100% and I only have to open a YouTube video to reach 125% without even being full screen.
That’s because Chromium and its descendants are not optimized for macOS. Things may be even worse for M1, since it’s newer.
Sad truth: Safari is much faster.