Hello!
I have 8gb ram, 4 core cpu, and HD7770 videocard. So a decent hardware.
BUT, Iclone 6 runs with extremely low fps (1-5). Even it's low when nothing is imported just the grids are visible and trying to rotate the view.
I had a windows 8.1, now I have win10 with dx12. The problem still exists.
What should I do to fix this?

You have posted your question in the iClone 6.03 forum, have you downloaded and installed the latest version - 6.11 - of iClone?

Did you have these problems while using Win 8.1?

The problem with the low FPS may be caused by your GPU having only 2 GB RAM and/or a problem with the GPU driver version that you are using with Win 10.

DirectX 12 has nothing to do with solving the problem, your card - and iClone 6, only support DirectX11.


Gerry

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System: Win 10 Pro (21H2), Asus X99-E WS, CPU i7-5930K -3,5 GHz, 32 GB DDR4 2666-16 RAM, NVidia GTX 1080 Ti GPU - 11 GB VRAM(Driver Studio-536.99), Samsung 850 Pro 512 GB SSD, 6 TB HD storage.

Yes same problem with 8.1. This happened after reinstalling. The first time it was ok. But I reinstalled my windows and then started the error.

I have a solution (It's weird but it's working): 
At the top right corner in the bar I deselected rigidbody and soft cloth simulation.
Then if I turn it back it's working with 60 FPS...