hello @guymontag
check this post it’s High consumption of Brave when I do not use the laptop about same issue
check if the solution there helped you
and check this also
Browser Pegs CPU at 100%+ for 3 minutes at startup
have a nice day 
hello @guymontag
check this post it’s High consumption of Brave when I do not use the laptop about same issue
check if the solution there helped you
and check this also
Browser Pegs CPU at 100%+ for 3 minutes at startup
have a nice day