Can anything be done about the lag?

[Emorist]

I get that its probably more complicated than "just download more ram" but when it takes 20 seconds to eat a carrot and I have to mine the same iron vein 6 times to actually get through it, it becomes increasingly more annoying to play on this server. I follow the recommended loaded entity limit by a large margin and I personally don't have any large auto farms (not that i wish to discourage the construction of those but I know they contribute to the problem) but the lag on this server makes me want to avoid voting in fear of adding more people into the 'lag soup'. I see people complain about it in chat constantly aswell and its not like its only a problem around peak hours. I'm sure it would be greatly appreciated by the whole community if something could be done about this quite major issue.