faster:hear why as I really don't see a USB system will be faster/better than an installed system.
dynamic persistence
(files changed during session are written to RAM, faaaaaast b/c drive I/O is entirely avoided)
(think. Just on example: files written/retrieved from web browser cache)
+
"toram" boot option
(the entire O/S is cached to RAM, avoiding drive I/O disk reads throughout the session)
+
semi-automatic save mode
(can manually perform persist-save at will, repeatedly throughout the session... or NOT)
(you are also asked/prompted to save during shutdown)
_____________________________________
better:
During toram sessions, the boot media can be removed (reattached only if/when performing a persist-save operation)
+
policy: no automount & only root can perform mount operations
(keywords ~~ isolation, lightning strikes, sandboxing, goof-proof, worry-free)
can "dry run" the persist-save rsync operation to conduct forensic studies
(what files have changed during the current session? or, what files have changed since last on-demand persistence waypoint)