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blender viewport laggy fix

HeyBraza points at the simplify panel and the per-modifier viewport toggles that cost you the most frames.

HeyBraza in a real session - not this exact fix.

blender gets slow long before your machine is the problem - usually subdivision levels, heavy modifiers and full-texture material preview. these settings cut the viewport load without touching final render quality.

or do it yourself

  1. 1drop back to solid shading (z > 'solid') while you model - material preview and rendered shading are far heavier.
  2. 2open render properties > 'simplify', tick it, and set 'max subdivision' under 'viewport' to 1 - final renders keep the full level.
  3. 3on each subdivision surface modifier, lower 'levels viewport' to 1 and leave 'render' high.
  4. 4turn off the monitor icon on heavy modifiers so they only compute at render time.
  5. 5hide what you're not working on: close collections in the outliner (the eye icon) and switch off overlays with the viewport overlay toggle.

let HeyBraza do this with you

HeyBraza is a tiny on-screen guide that points at the right buttons and talks you through it, on windows and mac.

download

common questions

why is playback slow but orbiting fine?

playback recalculates modifiers and physics every frame - lower viewport subdivision and use the timeline's 'playback' > 'sync' options.

will simplify hurt my final render?

no - the viewport limits under simplify are separate from the render limits underneath them.

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