I think the problem is not so much the size of a faction but rather the large amount of bases that can be fielded that causes the most lag. More bases and turrets means more things to load.
Large factions should rely on the amount of members they have logged on and not on the amount of bases they can spam and lag the play-field and cause disconnections and massive amount of loading problems and lag all over the planet.
I truly don’t understand why Rexx increased the number of bases from 3 to 10. That makes no sense. We already had problems with three bases per factions why increase it to 10 and size class 7 i do not understand.