I'm planning my first adventure, and I'm confused by the guidelines for creating encounters. Everything I've read says it should take around 6 encounters for the players to go from level 1 to 2, however the dungeon masters guide gives guidelines that say an encounter with multiple enemies should have a multiplier because more monsters is harder, but that it doesn't actually apply to the amount of experience gained.
This leads to examples such as 5 cultists from the monsters manual only giving 125 experience, but counting as 250 for creating the encounter. This is a medium encounter for my party of 5, but at that rate it will take forever to level up.
Would it be ok if I started adding the multiplier to the actual experience gained? Or would that mess things up in the future when the experience numbers get a lot bigger?