[brundolf]

I've had the same problem on the regular MBP Retina display. I have heard before that it may be related to scaling; I scale my display to have the smallest text/largest available real-estate possible. But I gave up on JetBrains before testing that theory.

[throw_away]

I run mine on a 2015 13" MBP against an external 1680x1050 display. Changing the scaling on the display helps a little, but it is still laggy like I'm on an intercontinental SSH session.