Computer games lagging?

[Rogue]

What's changed since then? Anyone moved in, internet provider's changed, are you living in an apartment building or in a private home?

It could be a number of things, including wear on the hardware between you and the server of the game you're playing, or your computer may be getting 'bloated' trying to access all the resources of the game.

The first thing I'd try would be to delete/move off all the data you don't need and defragment your hard disks. If your computer is the problem, it may be time for a reformat.

Try running a speedtest (speedtest.net is reliable enough to give you an idea), though without data from 'before' it would be difficult to tell what's happened.