TypeScript project feels very slow

Hi to all,

I'm currently working on TypeScript with IntelliJ IDEA on Windows 8.

The whole IDE feels very slow, typing updates are slow, code completion is very slow, ...

JavaScript or Java projects feel blazingly fast fast in comparison.

I already tried to disable live editing and file watcher, but IDEA  still feels slow.

Anyone else experienced this with TypeScript?

Any hints?

thx

Heinrich