True, there are a few things thats aren't 100% in mirror.
but scripts should run just 90-100% fine on the mirror client at this point.
Loading npcs/objects is something quite slow at some points,
but this should not stop the script from working.
It also took me several days to rewrite some parts of my scripts to make them work with the mirror.
tl;dr
Script should work fine at the mirror client, but can be slowed down if loading new areas