Quick Network Game Question

I'm currently 5 1/2 seasons into a Network game with one other person. The game speed started off at 4 stars and we both have good internet connections.

We have 1 nation loaded with the Prem down to BSP leagues and the game speed had little delay for the first couple of seasons, but it's gradually been slowing down. I'm guessing it's because of all the history built up during our game but is there any way to prevent the speed becoming worse to a point it's virtually unplayable or is it possible to get the game speed back to the original speed or will I just have to accept it will get slower as we go along?

Thanks

I just have to accept it will get slower as we go along?

Thanks

You answered your own question mate. The save is getting bigger and the host machine is slowing down due to the amount of data is processed.

Eventually you need a new Pc, but even a top end Pc will slow down a little if you stress it.