2019.1.02f Unusable

Hey there.
So , its been in some previous versions too, but you guys seem to always forget fixing this bug. I have been waiting and waiting for it to get fixed but nothing...

Basically if you hold M1 (left click) when playing ,there is going to be a great amount of lag showing. Im tired of having to bind my firing button to a key instead of the mouse..
I dont have ANY script that takes mouse input btw. (besides mouselook)

Look at 0:07. Its not me doing those view jumps. All i do is hold m1 .

Any fixes coming ?

 

Try build scene.