The Mavic Crossride is an average wheelset, weighing about 2000grams depending on the year. You can certainly lose some weight there but you're going to need $350-450+ to do so.

You actually didn't mention your tire size & model and I can't read it from that tiny pic, but that's a possible area to save weight for much cheaper, with the caveat that light tires could be less durable or less grippy. And if you cut a tire or wash out in a corner, there's little consolation in the tires being lighter.