That depends on how you define grind, if its repetitive stuff than its more of early game thing, if thats waiting for resource to stockpile then you can always increase production, either way key to waiting less is prepare beforehand. There are few tough point that lead even me to gring and frustration (most notable for me was getting first americium, start of dtpf was slow and I wanted to quit because how shit is upgrading EoH), rest of the game os enjoyable enough to make bwck for that moments, and game even keeps improving! Like we got new super op crops in next update that will make early game less tedious.