Tang12
(sorry if it is not understood, use the translator and also sorry for so much text) I just hope that with the high intelligence that the MC has and the system that he builds things that have the style of our world and not those of Fallout, those of Fallout are beautiful and iconic but honestly that things look like a combination of 80's or 70's I'm not sure of the year accurately and futuristic I don't like it I prefer the aesthetics of everyday life things in our more comfortable world like a laptop the one from Fallout is fine but if you had one in real life a computer that is so slow and little would be horrible functional compared to ours and the screen is green or another color, all the fallout technology is great and everything but I would say what you need to do the mc is to give an improvement to the electronic components or I don't know what could be improved I don't know about the components electrical and computers and give it more of the touch of our time instead of the characteristic Fallout style and after you meet those from the institute who combine them or those of our time win.
I just want to comment that it seems like you have a problem with power scaling in both this and the three kingdoms fanfic. In both fanfics there is the clear issue that it feels like the mc gets a lot from the system but at the same time he is always around the same level as the people around him or even lower sometimes...it doesn't make sense like at all. If the Mc drinks stuff that give him strength then all future enemies are just stronger and all allies are still right behind the Mc power wise. In this fanfic he was born with like a ton of stats and after years of being in the vault and "training" he was outright below average in most things and only higher in int...so what you're basically saying is that if the Mc was ATLEAST average and had the system he would be above actually way stronger compared to everyone else. I am sure there is some way to fix this issue by just either making the system give less an Mc actually get stats by himself instead of having him get like 1 or 2 stats by himself after like a year while the system gives hundreds of stats.