You should try turning off graphic card acceleration in Preferences>Performance. That might solve the issue. For my 15" 2013 retina MBP having it on is a mixed bag. Some things are much faster and some things are much slower. The 13" version has a slower GPU and so you might mostly get a decrease in performance having this option on. Just something to try.
Yeah I am finding that if your machine is not super high end and if it is not from the last few years, you might not want to have it turned on.