About 2/3 years ago somebody did a radical trim and it shot up a ton of water sprouts toward the light.. should be pruned every year. I'd probably take about half out now if you're not in fire blight zone and the rest the following year, total about 80% should come out to get light in and reaming fruit branches going straight up reduce to about half length or your preferred length. If too high, then cut all the upper branches FLUSH and just let the side branches grow to come down eventually.

Will probably take 5 years to return to form and fruiting.

If you want to tackle it, see this pub: "Pruning to Restore an Old, Neglected Apple Tree"

https://catalog.extension.oregonstate.edu/sites/catalog/files/project/pdf/ec1005.pdf

Most likely you'll see fruit sooner, 2 years..this pdf file doesn't shows a recently pruned apple tree with water sprouts...very different approach.