How are you comparing the tracking and towing power? It's not going to handle like a sports car, nor pull like a turbo diesel pickup, but it shouldn't be "awful" Assuming it's working per manufacture spec, there are ways to improve both. What Shocks are installed? A lot of people are happy with the High performance aftermarket ones. They're expensive but usually worth it. Check sway bars, are they the small weak factory ones? There are aftermarket companies that sell big heavy ones. 30' is probably close to max weight as well. Airbags on rears may help. Make sure the front end alignment is correct as well as tire pressures.
For power, there's not a lot of options, since that's the biggest engine ford makes that will fit in there. Banks power systems makes intake and exhaust systems that claim to add power. Previous owner installed those on mine, so I can't tell the difference, although it does do pretty well through the mountains along the west coast. Towing for class c is traditionally an issue since the hitch is mounted so far behind the rear axle. Usually only about 3500lbs unless you do some modification to the set up.