Can you add any details that might explain the slowdown?
Specifically, are you using an unusual install location (network drive, usb stick, hard disk instead os solid state disk)?
Antivirus often is a cause for slowdowns. The Fritzing release is new, and many 3rd part Antivirus software still need to update to learn its signature. Without it, a full scan on all the thousands of files that come with the installation is run.