You are exaggerating. You can complete the entire MSQ up to EW in less than 3 days in-game playtime. Source: You can find raiders with alts that have sprout icons, and I've done it myself twice.

But I get it, you need to know exactly what to do and skip cutscenes. You also can't do any side questing and once you leave an area, never look back. Which most would rightly criticize me for suggesting. The story is good.

Honestly, if the concern is anything other than the story, it's probably not the game for you anyways.

I'd also like to point out that most content is built to be relevant, so you'll be doing content with the rest of the player base in just a few hours of playtime. We have the opposite queue problem in contrast to other games: You aren't waiting for other new players to show up to complete content; you are waiting for the servers to fit you into a party that hundreds of other players of various levels want to also do.