I embbed a few raw files as smart objects when preparing pages for wedding albums. When I edit those smart objects (resize, move, etc) both my systems have 3 or 4 second lags with each change.
Is this normal?
The more powerful system is:
Core 2 Quad @ 2.4GHz
HD7790 OC 1GB graphics board
Raw files are generally taxing on your system and well, a core 2 quad with just 4GB RAM isn't what today is considered particularly powerful.