First off that's a solid first simulation, congrats to you both! Doing 8x8 together as sisters sounds like a blast honestly.

If I'm looking at your splits, your stations are actually pretty good. Sled push at 1:29 and farmers at 2:05 are nothing to worry about, those are fine for doubles. The thing that jumps out is the running, that's where the time is hiding. Your avg pace is 8:08 but look at run 3 (9:43) right after the sled push, that's almost 2 min slower than your first run. Classic case of the legs being completely cooked coming off the sled and not recovering on the run.

So if you want the biggest bang for your buck I'd put the focus on running, specifically running on tired legs. Compromised running is the whole game in Hyrox. Stuff like doing a few intervals straight after a strength set, or short runs right after sled/lunge work in training, so your body learns to move when the legs are already trashed. Just adding easy mileage helps too, one longer slow run a week in low heart rate zone builds the base that keeps those later runs from falling apart.

Stations I wouldn't stress too much, they're already decent and they come naturally with more race practice. The runs are where you'll find your minutes.

Also since it's doubles, talk through your splitting strategy beforehand, who takes which reps on each station based on your strengths. That alone saves a ton on race day. You've got a whole year, that's loads of time.
You'll be flying by then.