Thanks for the additional details.
That’s a good spec, can’t initially see any issues with that. 4GHz base with a 4.9GHz Turbo is right up there!
I don’t have any experience with VISI unfortunately, so I’m unsure how it uses the hardware and which components are most relied on for performance gains, and trying to review / validate their system requirements was unhelpful as their Site seems out of date and they don’t have any useful specifications to go on.
Can I please ask that you run this small monitoring utility: https://github.com/JeremyMain/GPUProfiler/releases and collect / review some metrics from your workstation when it’s running VISI and having issues. This will help guide you towards any component that might be struggling. What you can also do as well, is have the “Windows Resource Manager” running (not “Task Manager” as that only shows the CPU as a single entity) and this will show you the utilisation of each of your CPU Cores so that you can see if it’s a single threaded limitation.
Purely as an application comparison, it may be worth downloading an evaluation of the current version of AutoCAD to see if that exhibits the same performance issues. This may be a non-starter depending on whether you have a corporate defined application stack.
If you can’t get anywhere with the monitoring, it would be worth speaking to VISI Tech Support to see if there’s some application tuning that can be done to improve the performance (however that would typically mean there is a hardware limitation).
Regardless of the above, a 1.5GB CAD file is a big file to deal with! It may need breaking down into smaller parts, but I do realise this sometimes isn’t an option as you want to see the entire model at the same time.
I’d be really interested to see the hardware metrics and what kind of load it generates on your workstation if you’re able to share.