I will offer a different point of view.  Depending on how the framed pack fits in your canoe and how much it can carry, keep using it.

I find farmed packs allow me to carry weight more comfortably then unframed pack.  Or to put it a differently, for the same ease of carry level, the framed pack can have more weight in it.  In my case, that is not all that heavy.  Given the design of my frame pack, by putting the heaviest stuff in that pack, I can get it up to max weight with very little if nothing strapped to the outside.

So take a look at what you might bring, how you can allocate it to be carried, and the frame pack design to see if maybe the frame pack can carry a full load of stuff without much dangling on its outside.