Ping problems on my map

Hello,
I have a problem with ping issues on my map. I am currently building a The Floor is Lava map and when the lava hits many objects at once, the ping increases to over 100 m/s. I let the lava rise with an object mover. Is there a way to fix the problem or maybe another way to make the lava rise?

Thanks in advance for the answers! :smiley: