I have a plugin based on this template -&gt; <http...

# gradle

[server]

I have a plugin based on this template -> https://github.com/bnorm/kotlin-ir-plugin-template

performance is terrible, IDE has issues with providing any support. Even auto-complete works very slowly - (if works, most of the time it does not work). to find issues in my code I need to run gradle build (issues like missing imports). After gradle build and some long wait it can find class that is not imported.

Any idea what makes this plugin so bad from a performance point of view?