To speed up simplifying 3D models in Blender, use the Decimate modifier’s Collapse mode (lower ratio) or reduce polygon count early in your workflow—both minimize data Blender handles, cutting processing time.
Early reduction (before adding materials or edits) is critical for high-poly assets like scanned or sculpted models: simplifying first makes complex files easier to work with and speeds up all subsequent steps.
Collapse mode is ideal for most models: it preserves shape better than other Decimate options, so you don’t lose essential details while speeding up workflows.
Beginner tip: Start with a 50% decimation ratio—adjust slowly to balance faster performance and retaining your model’s form.
By focusing on these steps, you’ll simplify Blender models faster without sacrificing the quality that matters.