intellij Idea very slow on large projects


I'm using Idea to study code of many projects. for example

Idea doesn't handle this project very well, it becomes very slow, sometimes it takes a long time to open a package to see the classes,see image bellow.  ‘always select open file’ hardly works.

I know i can disable modules but then i can not browse the project as i want and can not always view classes i want to view.

I use a capable laptop Dell XPS 15, Idea has plenty of memory, i give it 15G memory.

Do you have a suggestion how to improve that?






I couldn't reproduce the issue on my side. Please provide information from “Help | About” (click on Copy and paste data here). Do you use any antivirus software? 


I'm not running antivirus, I'm using linux opensuse tumbleweed.

IntelliJ IDEA 2024.1.1 (Community Edition)
Build #IC-241.15989.150, built on April 29, 2024
Runtime version: 17.0.10+1-b1207.14 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Linux 6.8.8-1-default
Kotlin analyzer version: 2.0.0-ij241.15989-9
GC: G1 Young Generation, G1 Old Generation
Memory: 15000M
Cores: 16
Non-Bundled Plugins:
 PsiViewer (241.14494.158-EAP-SNAPSHOT)
 PythonCore (241.15989.150)
 com.github.b3er.idea.plugins.arc.browser (0.32) (241.15989.9)
 Docker (241.15989.111)
 DevKit (241.15989.180)
 Lombook Plugin (241.15989.150)
 camtwoTomcatRunner (1.7)
 String Manipulation (9.13.0)
 io.intellij-sdk-thread-access (2.2.1)
 com.arcbees.plugin.idea (1.2.1)
 izhangzhihao.rainbow.brackets (2024.2.3-241)
 org.digma.intellij (2.0.331+241) (241.15989.156)
 com.atlassian.bitbucket.references (2023.1.282)
 com.jetbrains.hackathon.indices.viewer (1.26)
 com.github.radgospodinov.plugin.reminder (0.6.4)
Kotlin: 241.15989.150-IJ
Current Desktop: GNOME


Please try to temporarily disable custom plugins ("Settings | Plugins - cog wheel - Disable all downloaded plugins"). Will it help?


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