Bad performance when typing

[2chilled]

When I type within a Haskell file it takes a while for the editor to display the chars. It's not unusable but there's a clear delay between the keyboard press and the display of the char. Can anyone confirm the same behaviour? I'm using the latest version of the plugin with IntelliJ 14.1.4 running on Gentoo Linux.

[cnsgcu]

I am having the same issue on my IntelliJ 14.

[nikomi]

Same issue here.

This coincides with a cpu spike, definitely some background processing, e.g. syntax checking/highlighting or something like that

[dimabxsx]

Same issue under IntelliJ IDEA 2016.2.2.

[ronyhe]

It's unusable on my machine using 2016.3.
Any suggestions?