Regeneration has more to do with the amount of polygons to generate than to it being a View or not.
You should check your model: if it has any layers turned on in the View that contain high polygon elements, such as Trees or complicated GDL objects. Then you can turn the layers of those elements off to speed up regeneration.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac27