(above) If those specs are true, the number one upgrade I would recommend if you desire to cut weight, is replacement of that steel crank with aluminum. It looked suspiciously thin for aluminum. That might require changing the pedals, as steel cranks are 1/2"-20 threads I think, whereas aluminum cranks are 9/16"-20 I think. But I'd wait a while on that, to know that you'll stay with a single crank ring, and not go for a double like me. I also went further with a new style 2-piece hollow-spindle crank with external bearings, even lighter, and so many other benefits with that newer system.
The steel hubs could also use upgrade to aluminum, but that's a big lift to do yourself, requires wheelbuilding and truing knowledge. Easier is to buy a new wheelset with aluminum hubs. But that's a much smaller weight savings than the crank and rings.
Ride that folder a bunch, see what you like, what you don't like.
A nice cheap upgrade, is a front "sixer" style rack that attaches at the fork crown and v-brake posts. These are just big enough for a six pack, and very cheap:

I later added a wood stick on each side between the front of the top deck and the fork dropouts, to keep panniers out of the spokes, and hung smaller panniers, as shown in my previous photos. Just be aware that any front rack may preclude you using bike racks on the front of buses and such, as it blocks the arm that goes over the front wheel to hold the bike in place. That happened on a trip, but I just folded the bike and brought it on board the bus.
OH, and see that front bag on the bike? That's just a cheap backpack, the arm straps over the handlebars. Dirt cheap, effective!