Some properties that I have hunted extensively were better for bow, and some were consistently better for gun season. There are so many different dynamics in play here that it's hard to put a finger on them, but I'd say human pressure is one of the big ones.
You say that your neighbors make noise and move around a lot, they may well be moving their own deer to each other, but observing deer behavior tells us that should also make those same deer very quickly become nocturnal or leave for quieter real-estate.
One main factor that I've observed is that bow hunters operate in close proximity to where the deer are, and deer activity drops every day an archery hunter is that area no matter how scent free that hunter thinks he is. Gun hunters, on the other hand, often set up several hundred yards from where the deer are, so even if they drive an atv to their stand in the middle of their property, the deer aren't bothered by it because they still don't detect humans messing around close to their core areas. And since bow season comes before gun season, the deer are already pressured towards the gun hunting areas with rifle stands 200 yards away, setting up those guys for the first morning.
The answers to your dilemma might be to "archery hunt" half of your property and let the other half untouched for gun season, and set up your gun stands several hundred yards downwind from where the deer are usually at. It takes 10 years to fully learn how to hunt a property, most of this having to do with knowing where to hunt on the property at what point in the season, and moving around a good bit for different sits at multiple stand sites situated around the fringes of a property is the best way to speed up the process of learning about that particular property. Cameras can help, but are not the same as an actual hunt, I know hunters who will sit out on the property line after tags are filled just to try out a new spot for future reference.
My experience is that gun hunting food plots that haven't been hunted all year is usually a good recipe for success, and having many different stands off of plots is a good option, rule of thumb, especially with bow, is to never hunt the same spot twice. It never ceases to amaze me how sometimes I sneak in to a closed hunting blind totally undetected, and the first evening I see 15 deer, the second evening, 5 deer, and the third evening, none. When a hunter goes into the woods, the deer know that he is there. Gun hunters staying 200 yards away have a huge advantage, if the area hasn't been bowhunted earlier.
Then there are the more obvious things that can be worked on, such as trying to have better food, water, and cover than the surrounding properties...