I know there have been threads on this subject - but I see those i found point to CPU charts and illustrates what happens when AC takes sections - i.e. CPU spikes as expected.
How do I ensure I get the most out of my machine in terms of what I need to set and so on ?
Do I need to point or set up the graphics card to do anything in particular ?
Machine specs are not the issue:
Perhaps its the placed trees which are causing problems?
In a new file from scratch - there is no problem. But at the same time- the file in question is not exactly heavy on detail either.
If they are 'real' trees with individual leaves, this can create many, many polygons which will slow down sections, elevations and 3D.
Simply turn the tree layer off and see if that is the problem.
Also if you have installed the 'Goodies' add-ons, you can use the polycount add-on to see just how many polygons there are in the trees.
One of the forum moderators. Versions 6.5 to 25 Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10 Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10