My laptop is Dell Inspirion 15 5000
These are it’s system requirements
32gb ram
Nvidea Geforce MX230
Intel Core I7 1065G7 CPU
The problems is sculpting in my laptop is very laggy and slow.
I am not using any modifiers on my sculpt model however I am using Dynanomotopology .
Does using Dynamo causes lag ?
Yes, it does. Even with multires Blender can not come close to the level of polygons you can do in Zbrush for example (and multires in Blender doesn’t really work right now), but with dynamic topology it’s a lot worse. Blender can’t handle much more than a few million polys with dynamic topology on.
If you have problems, it is not your machine’s fault (in principle, unless you have failed components).
Just in case you can improve performance a bit, you research in internet about good practices to improve performance when working with Dyntopo (some of them may be outdated being referred to previous versions of Blender)
I’ve seen some videos on yoututbe where users don’t get much lag with dynamo turned on ?
How did they manage that ?
Most likely the density of the mesh. Maybe you’re using too high of a detail level. And it might certainly be your pc but in my personal experience most of the time it’s blender that can’t handle the polygons.
From my experience with Dynotopo - if you gradually increase the detail level as you work, it performs a lot better. If you go from no detail to lots in one move however, it’s likely to cause some performance issues, as it has to work a lot harder to add the additional topology needed.
I also find that using the new voxel remeshing as you go also helps to keep performance smooth.
Generally, I’ve always had issues with Multires - and have never achieved good performance with it turned on. I think it’s something that’s getting worked on and ‘fixed’ for 2.9.
There is also a weird bug with sculpting where it will sometimes randomly start to lag, and even seem to lock up. Tabbing in and out of edit mode, or changing the workspace tab (top of the screen), and then going back into sculpting also fixes it. I’d guess it’s some kind of RAM caching thing…I dunno.