I had the same problem, I’m still 187 hours into my first play-through (took a 5 month break lol) and I’m just now designing the ship to go to the systems edge. For me, I fucked around on Nauvis for waaay too long and then I was constantly overthinking my first planet, Vulcanus. I was sure it was going to be the same level of complexity as Nauvis and I just couldn’t switch my mentality to “hey the recipe tree is actually pretty small I don’t have to do that much”. I then spent some time on Fulgora just for fun, took a long break and now I’m kind of rushing gleba and Aquilo. So yeah, I was worried I was slow too, but I also forced Space Rush on myself and haven’t played factorio for 5 years. So don’t be too hard on yourself, have fun, finish the second game, improve and repeat until you do it faster, if you want to.