._. I'm really wondering how you achieved this, unless you just let the game idle for forever? I have the whole Upgrade tree unlocked but it still takes a long time for anything past tiers 1 or 2 to craft?
Like Yield Amplifier is still at 10 seconds per craft, and there's no real way to keep increasing the speed other than the speed crystals, which also take a while and the boosts really flatten out after a while.
Having also just completed this feat, I can tell you that the fastest way is to get mana crystal and cyan amplifier golden, followed by speed crystals, then yield (which at that point should take about 2-3 seconds per craft), followed by everything else. After getting yield amplifiers gold, it took a total of about an hour for the rest. The total time for this should be about 3 days, depending on how lucky you are with the requests. For this whole thing, I had the 2x card drop rate, so it could very well take over a week to do if you're really unlucky. Granted, you could just prestige until you get it, so it shouldn't take a week.