Keyboard "jumps" when receiving pop up notification (Galaxy S6)

I've had this problem for a long long time with SwiftKey and Galaxy S6 edge (Android 7.0).

When I'm typing with SwiftKey and receive a pop up notification on the screen at the same time, it causes the keyboard to do this little "jump". The notification animation kind of pushes the keyboard downward for a split second.

It's not that big of a deal, but really annoying because it usually results in pressing wrong keys while you type and the keyboard suddenly jumps.