Actionsite Version Issues

It seems like almost every month or two, when I do my monthly patch prep and I go make a bunch of changes, BigFix gets overwhelmed and stops replicating Actionsite data to all of the relays. I’m not sure what I can do to ensure it can keep up? It does not look like the BES Server, 1st Level Relay nor 2nd Level Relays are heavy on CPU, Memory, Network… Disk activity may be kind of high. Is that what I need is faster storage? If so on all of them or just on the Server or Server and 1st Level? Is there anything I can do for the short term to help it catch up so that I can complete my prep?