If it does this at all outside of Blockland, this sounds like a mouse problem more than a Blockland problem.
did you tried to restart blockland settings or something like that?
I reDL'd Blockland, but it's still happening
My mouse is the standard Microsoft optical mouse. I've checked all over, but I can't find any settings for smoothing or anything like that.
i had this problem on my surface using a wireless mousei think microsoft mouses just don't like blockland