I have a very old Macbook that I keep around for occasional use. The latest version of Chrome has a serious performance problem with it. Every click on a web si

I have a very old Macbook that I keep around for occasional use. The latest version of Chrome has a serious performance problem with it. Every click on a web site brings up the spinning cursor and there are several seconds of latency. Safari on the same computer has no such problem, so it's not the age of the machine. I reported the issue, after navigating several-second UI lag, but not holding my breath for them to fix something on an old OS/hardware. It seems like every release of a Google product(the ones that I use anyway, gmail, Chrome, Voice) brings some downside/regression. Can anyone recommend script blockers for Safari ? It was the main reason to use Chrome for me.