I have been running CF8. I stopped all CF8-related services, set them to manual, then installed CF10 with Developer option.
Slow as molasses. Even getting the Administrator screen up takes 5 minutes or better. The pictures are X's, apps won't run as either port 80 or port 8500 ("The connection was refused when attempting to contact localhost:8500"), windows 7, reasonably new hardware.
This is on my desktop. What odd is I did this exact same thing on a client laptop I use when I work on their project, and it all works wonderfully well.
Going to uninstall/reinstall to see if I did something wrong during the first install.
Suggestions welcomed.