sketch speed

Hi,

I've drawn a large sketch (2D) and it started working really slow. I put sketches in layers and hiding the layers doesn't speed things up.

So basically every time I start drawing a line or something it takes 5 seconds before it registers it.

Is there a way to speed this up?

It seems like on every action it's rechecking mates and so on...

SolidworksDrawings And Detailing