Running GW 2012 SP3

I have a number of users that get very large #'s of mail and store them
in the Mailbox

They easily have anywhere from 10 - 20,000 items

These are all from just 1 calendar year so they like to keep them there

Problem is, it can take a while for GW to load and oftern shows as NOT

GW client is set up in Online mode

Should I consider caching mode for some of these users. They also use