I'm guessing you don't have much for part cooling, except maybe for a little blower near on the hotend?
better cooling of the print can often help a little with the blobbyness in places, and will make a huge difference to things like the keel of the benchy where you have a fairly shallow overhang. the sort of blobby notches like you've got showing roughly half way up tend to happen from printing onto plastic that's still soft. It shrinks, and lifts up the previous layers, until eventually it prints enough mess on top to start blobbing over the edge.
That could be part of the reason for the curling on the bottom corners of the cube as well, though that can also come from it not being bonded well enough to your build surface.