Dellorto (and similar Webers, too, I believe) all tend to settle down to a more-or-less decent idle, but only after 2 - 5 minutes of warm up. After ten minutes they get happy and are fine, even in cold WX. Prior to that, they're grumpy and moody, running rough and coughing when the throttles are opened - that sort of stuff. It's driveable in a minute or two, just take it easy on the throttle to avoid popping. Not having choke plates doesn't help much, either.
My car ( 2,110cc - 40mm Dells ) will settle into a slow, grumpy idle (just like yours) about 200 - 300 rpm slower than what I like (and they're set to ) after 30 secs and then increases over the first five minutes to around 800 or so as it warms up. Thus far, yours sounds great!
We both went lactose intolerant 6 years ago. Goat and Sheep cheese are our new food friends - Anything you used to eat as dairy cheese can usually be found as a goat or sheep variant and they're very good! Just watch out for cow milk contamination in some "dairy" goat or sheep cheeses (the label should so state). Almond, Coconut or Soy milk is everywhere so no problem cooking with that for cream sauces and such, but we also found ourselves reactive to Beef, too, so we do Bison as a red meat source, now. My wife can fill you in on all sorts of alternatives.
I tried, but could never understand Cricket, even when it was explained (which seemed to make things worse). I caught on to Hurling, even played it a bit, but not Cricket. We watch Liverpool FC occasionally, mostly because a friend is part owner/Director (he's also part owner of the Boston Red Sox baseball team which, I guess own LFC, too) - At least I can understand what's going on, there and get to yell at the players.
BTW: If you're missing that great cup of spiked eggnog over the Holidays, try making a Coquito with rum. You'll never look back and they're good in the Summer, too. You'll need to make "Dairy free sweetened condensed milk" (Google that) and need a good Coquito recipe, like the one from Alisa Fleming on the web. There's a raging battle over to egg or not to egg your Coquito. IMHO, it doesn't matter - they're both great.