Well, if you; like me, hate Google Chrome recently; because it gets slow as a turtle, here's a solution:
<code>google-chrome %U --disable-accelerated-compositing</code>
I dunno what the %U does, but the other one is self explanatory. This solved my slowness problems.
BTW, I have kmod-catalyst installed. Maybe that is causing me to suffer. I also did some testing with OpenCL so I installed some drivers from AMD. I have an AMD v4900.