how do i make OAB generation faster?

Exchange 2013 cu4, Windows Server 2008 R2

I have users complain that, since we're using cache mode in Outlook, any new additions to the address book are not being received in a timely manner. how I work around this is to recreate their Outlook profile in order to force a pull request of OAB.

so I did some checking and found the following:

from what I understood, the above would mean OAB generates every 8 days? this was configured by a vendor when they upgraded us from 2010 to 2013.

will it do any harm if I make the OAB generation to daily?