Well, the new lighting applied in 2015 to mimic game lighting and get vertex painting wysiwyg needs a bit more GPU resources as before
as now front and back faces of all the objects are computed for lighting instead of only front faces before.
So for some CPU/GPU couples that are not very friendly with OpenGL, it might be quite slower to draw the scenes as you surely experiment.
Sadly if it is slow even with no texture, wireframe mode and showing only 1 scene, there's few you can do to improve it. (or maybe check you didn't enabled GPU hungry features in your GPU control panel, like anti-aliasing or such).
BTW new lighting code completely replace old one and I'm not sure I could make an old fashioned render option. We will see...
I will make a test but I made a "mistake" as I bought a new CPU with plenty of RAM (coupled to a decent GPU) one week before GP4 Builder 2015 release, so it is harder for me to check this.
PS : I just noticed wireframe mode is way slower than plain render or even plain+wireframe for an unknown reason. I have 20fps in wireframe while I get 50+ in plain. So please check if it does the same for you.
Edited 2 time(s). Last edit at 04/29/2015 08:55PM by Lo2k.