Slow paste? Follow

I'm running a 2013 iMac with Yosemite.

When I paste *anything* into PHPStorm 8.0.1, it hangs and takes at least 30 seconds to make the paste.

I could copy a line, move up a line and paste that same line back or over itself and I'm stuck with a 30 second wait.

Anyone have any ideas why?  It's made PHPStorm totally unusable.