Canada too is pretty bad. If I buy a $30 Kickstarter ttrpg book, it costs me at least $25 to ship that like 1-3 lbs book from the US to my place. There are some things I buy where shipping and VAT charges are literally more than the item itself.
That's crazy man, I thought it was bad just sending stuff from Ireland, but there you go, it just seems to be across the board.
I've been able to lower the price a bit, and not let it eat too much into profit, and that's essentially to encourage some sales, especially now as I'm trying to build up my reputation, but once some more feedback comes in, I'll bring it back up a bit, but maybe not to the full amount.
You could increment up a few percent each year over the course of 5 years, with the goal being no shipping loss by the end of that timeframe, and I bet it would work pretty well!