I've setup a MAME cabinet using an older Intel E8400 CPU (3.0 GHz, dual core) and 4 GB of RAM. It's running Windows 10 x64 with CRT Emudriver and GroovyMAME installed.
However, when I run Big Box (with the default theme) it's incredibly sluggish to display each movie and move between menu items. I have all of the artwork installed (Emu Movies) and about 600 games.
Does Big Box need a newer/faster CPU?