We are looking into making the gamemode less "laggy" however people assume it's the server it's hosted on. It's not... Its not going to be a overnight fix either, it will take considerable time as our gamemode is like 12 years old now. You also mention Latin America players, do they realise they are playing on a server hosted in London some 5000 miles away, right? We are using a mod, no matter how good it is, is doing something the game was never designed for and what makes it worse is a large portion of people are playing on poor equipment, so their game lag and poor fps looks to you as "network lag". The more stuff you ask to be added etc will unfortunately put more strain on your computer. As the for a new "sync" system, this has nothing to do with us and "sync" is provided by the MTA mod.