D5 Running Slow but everything looks normal?

I have a decent computer at work and the specs are at or above optimal for D5, but the program is very slow, sluggish and glitchy. It usually takes many minutes just to do a simple command, move or change a texture. My workflow if from Revit to D5, and the files size is a bit big, but I still think D5 should be lagging this bad right? I will drop the information below.





Is there something I need to turn on for the graphics card for this to work? Interesting thing is, I have been having a similar issue with Enscape. It seems that 3D rendering taxes my computer, which it shouldn’t be. It makes me think something is bottle necking the process or I don’t have the correct settings turned on? Any help will be much appreciated.