topic Re: Laggy performance on Macbook M4 Max in Fusion Support Forum

Laggy performance on Macbook M4 Max

kallanSHFRH — Mon, 22 Sep 2025 16:33:37 GMT

This is driving me crazy. I have one of the most powerful macbooks you can buy - the Macbook M4 Max - and Fusion is incredibly laggy, especially in the sketching environment but also when selecting tools etc. The most frustrating is the mouse movements are often very delayed. I have scowered the internet for solutions but have found nothing clear. Attached are images of my current graphics settings, and I am still experiencing issues. I am running the latest version of Fusion 2604.0.316 arm64 [Native].

Re: Laggy performance on Macbook M4 Max

TrippyLighting — Mon, 22 Sep 2025 17:06:30 GMT

A model that exhibits those problems, along with a screencast of you working on that model would probably help.

Re: Laggy performance on Macbook M4 Max

TheCADWhisperer — Mon, 22 Sep 2025 19:11:07 GMT

@kallanSHFRH wrote:
.... and Fusion is incredibly laggy, especially in the sketching environment ...

Post screen shot of slow sketch.

The most common cause of this is excessive use of sketch patterns (especially Mirror).

Pattern Features, Faces, Bodies or Components, not sketch curves.

Can you File>Export your *.f3d file that exhibits this behavior to your local drive and then Attach it here to a Reply?

Also, are you using a 3DConnexion device? If yes, are you running Calibrate at the start of each session?

Re: Laggy performance on Macbook M4 Max

jacksonwarren86 — Tue, 09 Dec 2025 05:38:54 GMT

I also have an M4 Max and am experiencing performance issues (beachballs, hour-glass, etc). It doesn't matter how simple my models are, it's always sluggish.