Need a Plugin that deletes entities in new chunks only

I have discovered that when generating new chunks my small private server for my friends/family experiences INCREDIBLE lag. then when I use /lagg clear it removes like 150-200 entities. When not generating new chunks clearlagg will remove somewhere between 2-10 entities on average. I tried pre-generating but the world file became too massive to backup and I HAVE to backup my world because I am running an FTB server.

I would set up clearlagg to clear entities if the tps falls below 14 but I'm afraid people wouldn't be too happy with this option. So what I need is a plugin that will only clear entities in newly generated chunks. Or maybe around the player generating new chunks would work as well.

I am also open to other solutions.

 

Moved to Alternatives Section.