Optimizing IntelliJ IDEA Performance on Mid-Range Laptops

I'm currently using IntelliJ IDEA on a laptop with an i5 processor, 8GB RAM, and an SSD. While the performance is generally acceptable, I've noticed some sluggishness when working on larger projects or running multiple plugins. I've already tried increasing the heap size in the VM options, which provided a slight improvement. However, I'm still experiencing delays during code completion and project indexing.

Since I'm using an i5 processor laptop, I want to ensure I'm getting the best possible performance from IntelliJ IDEA without upgrading to high-end hardware. I've read that optimizing IntelliJ IDEA’s performance involves not only adjusting memory settings but also managing plugins and tweaking IDE configurations. According to discussions on the JetBrains support community, many developers suggest disabling unnecessary plugins and fine-tuning inspections for better responsiveness. Additionally, keeping the IDE up-to-date helps, as performance improvements are often included in newer releases.

Given my current setup, are there specific configurations or adjustments I can make to enhance performance further? Would upgrading my RAM to 16GB make a significant difference, or are there other settings I should prioritize? Any insights or recommendations from the community would be greatly appreciated.