[Closed] locking controller is slow?

So i’m trying to lock position controllers on some selected object

ar1 = selection as array
for i=1 to ar1.count do
(
	lockedTracksMan.setLocks true #(ar1[i][3][1]) #(ar1[i][3]) #(1) true
)

but it’s very slow (like 1 second per object), even for one object. Any tricks or alternatives to speed it up?

Edit:
If the material editor is open it’s slow, but if it’s closed the speed is fine. any ideas why?