It is a bit tedious to farm, maybe you should update the game to farm wherever you click and drag. I know in idle games you are supposed to click, buy, and go on, but farming takes so long and does not reward you.
The progress of the game is slow, and heavily relies on afking. You could speed it up a little, and the only way to progress is basically crafting. I have tried crafting with Uranium and Eldritch Ooze, mind you, very far apart, and I see basically no difference. You could also make it so that the gem system really rewards you, and you should have a better mining system. Once you get really high in the mining, it is just long days of wait. This has 3/5 replay value, but it could be better.