&gt;  its slowness always reminds me that its writen in java.<p>It&#x27;s a huge pain point of any Java app, and it certainly causes a headache for users, but have you checked and tweaked your maximum heap size? Typically when I get even a small project going in IntelliJ with a couple productivity plugins installed I&#x27;ll start hitting GC churn because the default Xmx value is so low, setting it to 1GB makes a huge difference.