When holding down left click to destroy multiple blocks together, the speed sometimes goes way too fast randomly, often resulting in way more blocks being deleted than intended. I can't find out why it happens randomly but it doesn't feel the same as the quick delete that I can purposefully trigger by sprint flying forward and holding left click.

I have a 3mb screen recording of this issue but I'm getting an internal server error when trying to attach it.

Edit: think the attachment works now