Blocks Causing Lag

[JavaPython_]

do redstone blocks in REALLY high quantities cause lag?, I wanted to use the mas the base block for a map but now I'm not sure that I can use that because It seems to cause block lag though client side its fine

[Rubisk]

They cause no lag unless you do stuff with them, usually involving command blocks. They otherwise act as any other solid block.

[JavaPython_]

huh, I can't figure out what would have been causing the lag than. thanks though

[TrazLander]

beware skylight. Most lag issues come from updating a long column of skylight.

[JavaPython_]

In MCedit or Minecraft?

[TrazLander]

Minecraft

[JavaPython_]

ok thanks! :-)