v60 on my iMac had random tab freezes all the time on "heavier" sites. Sometimes I'd switch to Facebook's tab and the page would just be white with a loading ic

v60 on my iMac had random tab freezes all the time on "heavier" sites. Sometimes I'd switch to Facebook's tab and the page would just be white with a loading icon in the center, then maybe 1-2 minutes later it would become responsive again. This happened with multiple sites, too.