Horrible 2D performance on high spec laptop AMD

[jonafa]

Specs:

Laptop: Lenovo Legion pro 7, modelnr: 82WSCTO1WW

Cpu: Amd ryzen 9 dragonrange 7945hx

Gpu: 4090M

Ram: 64GB

SSD: Samsung Evo 990 pro

Mux system: yes - I am using dgpu only

OS: windows 11, bios: LPCN59WW

Hi student here, I am writing this because I have put up with it for almost a year now, but now I am growing quite impatient as my projects become bigger and bigger. In 2024 I bought this high spec laptop in order to be able to run archicad/rhino and several other programs as Adobe package at the same time and run it well. This has worked well for all programs except Archicad. I have also read earlier posts about bad archicad performance and tried to see if there is anything there I could do to resolve this issue, but alas to no avail. It is sad to see how my classmates with 5+ year old macs have better performance than mine. Now I do know that archicad, as well as many creative programs, are first and foremost optimized for Mac, but using a Mac is no option for me. I've looked up at the recommended specs and it says that Archicad do support mulitcore ryzen 9 series, so I dont see why that would be an issue. Using NVIDIA overlay when working in 2D it shows horrible CPU usage, sometimes as low as 5% and rougly 20% when it lags the most. I have enabled multicore so it uses all cores and threads at the same time to maximize performance and it works for everything it seems except Archicad. In 3D it works as it should, having the gpu using anyware from 30%-80% and it is buttery smooth, so I know the dgpu is being utilized correctly there. 

Things I've done to try and improve this:

-Enable in Nividia 3D settings Archicad to use primarily dgpu and set all performance settings to max

-Setting the taskbar to static, comment; sometimes when a loading process is going on in Archicad, sometimes dragging my mouse down to the taskbar has increased cpu usage and thereby increased the task performance. It is really weird. Normally I have the taskbar hidden, but I now tried to have it shown static and noting improves. 

-Made sure I use openGL and ticked off hardware acceleration in view-->3D view options

-enables dgpu in Lenovo vantage.

-I did try some time ago to disable enabling all cores and letting the cpu autocontrol it, but all I saw was a downgrade in performance in everything. 

-upgrading Archicad version from 27-28. That helped a little bit. 

In short I find it really weird how other people are working with 5+ yr old laptops that have much better 2D performance than me, but obviously have horrible 3D peformance compared to mine (some still even use laptops with only igpu). Any tips would be appreciated. 

[jonafa]

Thank you

It seems like some have pointed out that I have tried changing most of the settings which can affect Archicads's performance (I also tried disabling all background updating, but it made performance worse? lol). I guess the important thing I gather from this discussion is that there is several things one can do from the beginning of a project which can help reduce file sizes and performance, and that one should if possible try to minimize "bloat" elements as much as possible. Dont think there is that much I can do different now in terms of settings and tweaks so I'm gonna try and follow the project advices given here for current and future work. 

[jonafa]

I tried disabling all background updating, it made performance worse, haha. But yeah, the very last thing I could look into is a bios update, there is one available right now, HOWEVER, I am skeptical of bios updates for this laptop specifically, as some of the bios updates in the past have made the cpu behave weird, hence I rolled back at least two times. 

[Laszlo Nagy]

There are cases when the model is just too complex and it is starting to affect Archicad's performance.

Two things you can try in such a case:

1. Save complex elements of element groups as Library Parts and place those.

2. Split your model into 2 or more files so one file does not have as much geometry. In such a case, you can have an additional fiel, which will be the so-called "federated model" that contains all partial models as hotlinked modules.