Canada is a huge country, and shipping rate can vary alot for a same item depending of where we ship. Is there a way toa dapt shipping cost by postal code or province?
From what I can see working with LS for a few years, there is no way to adjust that for each Province. You can add a percentage onto your shipping fees in the eCom settings under Shipping Methods if you feel the shipping rates are too low.
Also try calling your shipping company rep to negotiate a better rate, they will often cut down costs if you ask for it.