Instead of using one "3D Roughing" toolpath, use a "Pocket" toolpath at increasing depths. This clears material faster than the standard 3D roughing routine.
Rest machining allows you to carve detailed areas with a small bit after a large bit cleared the bulk of the material. Version 11.5 fixes the "island calculation" bugs that plagued earlier builds. The software now accurately recognizes uncut geometry in complex 3D models, reducing manual clean-up time by nearly 50%. vcarve pro v11.5