topic Re: Fusion 360 so slow, it's basically unusable (video and file provided) in Fusion Support Forum

Fusion 360 so slow, it's basically unusable (video and file provided)

Anonymous — Sun, 18 Jul 2021 00:55:31 GMT

Hi all,

Thank you for reading this. Here's my setup:

MacBook Pro 2015 Retina (MacOS 11.4); 16GB RAM; 2.2 GHz Quad-Core Intel Core i7; Intel Iris Pro 1536 MB
27inch 4k external monitor
Fusion 360 version 2.0.10446

Display Setting:

File:

https://a360.co/36JPE04

Issue:

Fusion 360 is so slow that it's basically unusable. Here's a video about what I'm talking about:

https://youtu.be/YV2DW6usxag

Any advice is appreciated. At this point, I can't even use 360.

Re: Fusion 360 so slow, it's basically unusable (video and file provided)

jhackney1972 — Sun, 18 Jul 2021 01:43:02 GMT

I loaded up your assembly and do not see much lag at all which you can see in my Screencast. I am on a over 12 year old Windows 10 Pro computer with 16 GB of ram, I7 Intel Processor and a Nvidia Quadro 2000M video card.

Re: Fusion 360 so slow, it's basically unusable (video and file provided)

Anonymous — Sun, 18 Jul 2021 01:56:01 GMT

Thanks for your reply! That option that you mentioned in the video was not checked off for me. After checking it off, the performance did improve significantly. However, picture resolution now is (perhaps expectedly) dampened. Here's a picture:

If you look at the lines of the "red cube," there's noticeable jaggedness.

Would upgrading my machine to a newer model fix the issue (ideally working with models at the highest resolution)? If so, do you happen to have any recommendations in terms of processors etc.?

Thank you again!

Re: Fusion 360 so slow, it's basically unusable (video and file provided)

jhackney1972 — Sun, 18 Jul 2021 02:01:38 GMT

I am a Windows user and MAC architecture and OS is really outside my realm so I dare not say. I run a standard monitor, not HD, and you can see I do not suffer from any sharpness problems. I have the option to select as my Graphic Driver under my Preferences but I do not think you have to same options on a MAC, again not sure. If you do, try the OpenGL setting. Sorry I cannot advise you.

Re: Fusion 360 so slow, it's basically unusable (video and file provided)

Anonymous — Sun, 18 Jul 2021 03:06:58 GMT

Thank you for your reply. I tried what you mentioned—but it not change the picture quality. I'm gonna try this on a higher-end machine to see if it's gonna make a difference. I'll report back.

Re: Fusion 360 so slow, it's basically unusable (video and file provided)

g-andresen — Sun, 18 Jul 2021 08:56:53 GMT

Hi,

My tip:

1. test first, then buy
2. what you need > CPU speed
3. graphics: Mid-range Direct X optimized

günther

Screencast

CPU : i 7 3,6 GHz

Re: Fusion 360 so slow, it's basically unusable (video and file provided)

TrippyLighting — Sun, 18 Jul 2021 12:17:11 GMT

@g-andresen wrote:

3. graphics: Mid-range Direct X optimized

On macOS Fusion 360 utilizes the OpenGL graphics API.

@Anonymous

A dedicated graphics card generally performs better than the on-board or rather on-CPU Intel Iris graphics.

I use a 2017 MacBook Pro with Radeon Pro 560 4 GB and also use an external 4K monitor (LG CX 48").

When I have the monitor connected directly to my MacBook, manipulating models in the viewport is still smooth but noticeable less smooth then if I only use the notebooks Retina display (I usually have most effects disabled except Anti Aliasing).

However I also recently bought a used Blackmagic EGPU (eBay), which uses a Radeon 580 RX. With the external monitor connected to it, viewport manipulation is not only smooth, but smoother than running only the notebook display.

Re: Fusion 360 so slow, it's basically unusable (video and file provided)

Anonymous — Sun, 18 Jul 2021 13:16:01 GMT

I see. Sadly, it seems like having a Thunderbolt 3 port is a requirement for using the Blackmagic eGPU. My 2015 MacBook Pro does not have Thunderbolt 3.

Re: Fusion 360 so slow, it's basically unusable (video and file provided)

Anonymous — Sun, 18 Jul 2021 14:57:00 GMT

Thank you for responding. Just to make sure I'm getting this, you're saying that GPU "strength" is more important than CPU strength in my case?