How do you manage heavy DWG files without AutoCAD slowing down?

[dlpureapks]

Hi everyone, I hope you’re doing well. I’ve been working on a few large DWG files recently, and my AutoCAD starts lagging and responding very slowly — especially while panning, zooming and switching layers.

I’ve already tried Purge, Audit, and removing unused blocks, but the improvement is still very minor. The file size goes above 80-120 MB sometimes, which makes it difficult to work smoothly and causes delays in my workflow.

So I have a few questions for experienced users:

1. What are the best practices for handling heavy DWG files?

2. Do you prefer Xrefs for large projects, or do you keep everything in a single file?

3. Any specific layer management or cleaning method that actually helps performance

4. Does using external plugins or optimization tools make a noticeable difference?

I want to keep my project files organized and lightweight, without losing data or drawing quality. If you have a step-by-step method, I’d really love to learn it.

Thanks in advance! Any tips, workflows, or tool recommendations are welcome.
Looking forward to your suggestions.

[scottjonah487]

Thanks for sharing these ideas. I’d also add: try purging unused layers/blocks and use Xrefs instead of embedding massive geometry — it really helped when I faced slow AutoCAD performance.

[grgroupbangalore_seo]

Try removing unnecessary layers, cleaning Xrefs, and dividing large drawings into smaller linked files to handle large DWG files without AutoCAD slowing down. Optimize hardware acceleration, compress attached images, and disable real-time shadows. These actions reduce memory load and improve overall editing and navigation performance.