Sorry to hear you are having issues. No there is no option to turn the animation off for now. But there were few feature request put in for it before by others. Not really sure how slow it move on your desktop. But, for me, it look okay, maybe, I just don't move my icons that much to notice it.
If you have dual GPU system, these solution mentioned here might help you too. : https://forums.stardock.com/490929/get;3745196 Reply #11 and beyond have some solutions you can try, if it applicable to you.
Stardock Community Assistant.