Sketch lines w/o Open GL

Hello.

I disabled Open GL on my Solidworks because it was very laggy, and for reason whenever I selected a sketch or model, it would trace it and then select it, which I found strange cause that never happened before. However, for some reason when I disabled my sketch lines look very thin and weird.

I attached the pictures. the first one is with open gl enable and the second one is without.

Does anyone know how can I fix this?

SolidworksGeneral