C22 is a nice boat, but a bit of a dog in <10kts. Much heavier than other boats of comparable size, and it's boxy high-volume hull means lots of wetted surface. Similar boats that will go better in drifter conditions:
US21. This boat flat-out flies. It's light, slick, and carries a good amount of sail area. (Don't confuse w/ the US22, which is a dog. Woof.)
Ultimate 20. Not much belowdecks, but how about 1300lbs, 305 sqft of working sail, and a PHRF of 144?
Venture 21. Nice little boat, and v. cheap.
Schock 23. Roomy, not as stripped-out as some Schock/Santana models, but still zips along in moderate air. Draft of 2ft makes it good for shallow waters, and substantial beam and ballast means it's stable for family outings. Yet a PHRF of 189. Also see Santana 23 and 2023.
S2 makes a number of models that sail well in all winds. They have slippery hulls & efficient foils. Some even have enclosed heads -- a big deal w/ the ladies.
Finally a plug for our
SJ21. It's cramped inside, with barely room to sleep two and sitting headroom only. But at 1500 lbs and 190 sqft of working sail, it's very good in light winds. It won't slice thru chop like a C22, and you'll be reefing much earlier (15 kts), but it's a killer when the winds go flat. Its bigger brother the
SJ24 is also nice in light air; the SJ23 is not so good at all.