Hello i want get a list of my pcuptime in our network via

objCIM = GetObject("winmgmts:{impersonationLevel=impersonate}//" & strComputer & "/root/cimv2")

this works fine i can read the pc uptime ....

so my problem is in my network are 230pc and some are offline so it tooks time to read ... is there a way to boost up (timeout)