Spellslinging Sellsword
Adventurer
I ran a short campaign (26 or so 3 hour sessions) from levels 1-6 using only the PHB, MM, and DMG.
If you have to have them level up this fast (and it is VERY fast) then start at level 2 and do 2 levels every other sessions. New abilities every session is going to leave people trying to figure out the new stuff every session (and these are short sessions).Adding new features, spells, and feats every session is likely the biggest cause of combat time bloat.
If I run a game, it's always only PHB.
I'm running a nine-session campaign. Each session is two hours.
We need time for story and region building.
I definitely think this is correct, but I like challenge.PHB only won’t reduce combat time. Not leveling up after every session will help keep thing in check. Adding new features, spells, and feats every session is likely the biggest cause of combat time bloat. Before the players can get used to one level they’re on to the next. If you only have two hours to play and want non-combat stuff to happen, don’t run combats after 5-6th level.