>>722944953
You definitely gotta pace yourself. Playing all four games in a row would be really rough. Pic related is my playtimes to beat each game, they only get longer.
I think the way the games themselves are paced helps somewhat though; between cutscenes and down-time in towns/school or dungeons, it doesn't really feel like you're just repetitively doing the same shit for all that time. And if you don't care about doing completionist/side shit, you can cut down the time to beat a fair bit.