Is there a realm maximum size?

[Sword_of_Spirit]

My realm is huge. It's basically a persistent world database for all of my D&D games. It encompasses worlds, planes, cities, NPCs, all that stuff.

My database backup (mostly that realm, though there are a couple others I played around with) maxed out in size at 124,576 KB quite some time ago, and hasn't grown since then. However, the more content I put in, the slower running it gets.

I'm assuming there is some sort of compression tech that is allowing it to stay at that maximum size?

I'm also somewhat concerned that at some point it's just going to get too big to work with effectively (tabs taking too long to load, etc).

Since having an ever growing universe database is sort of the whole point of the software for me, this is a bit of a concern. So I guess this post is a combination inquiry into program limits, and prospective suggestion to increase them.