NX Studio 1.90 on a fast Win11 machine with heaps of RAM and NVMe SSDs: loads and displays very fast on local files, absolutely glacially slow if network locations are accessed. Whether the latter issue is due to NX Studio, Win11, or a combination of the two, remains unclear. However, on the same machine, v. 1.80 behaved in a similar fashion, except it crashed frequently when I tried to browse files on my NAS boxes.