Yes, of course, I expect the game to improve greatly over time. Also I did in fact find crates in each system eventually, but it often provides only scrap (and only a small amount of it). The hull is also a massive problem as it can expire at about the same speed as oxygen does, but the repair kits only fill 20% compared to full fill-up of oxygen.
I did not try how hard it would be after a decent amount of hours into the game when the ship is really upgraded, but as far as I know it won't help with the oxygen issue.
I guess just a bit more generous loot from the boxes and enemies as well as less expensive prices in the shops should solve the issue up to a decent level.