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Turn around to the left just before bonking the ceiling, to retain upward momentum. Then turn back to the right and go through the morph tunnel to the right, avoiding crab damage.

Entrance condition:

{
  "comeInSpaceJumping": {
    "speedBooster": true,
    "minTiles": 3.5625
  }
}

Requires:

{
  "notable": "Cross Room Jump Morph"
}
"canCrossRoomJumpIntoWater"
"canPreciseSpaceJump"
"canMomentumConservingTurnaround"
"canMidAirMorph"

Dev note: Jump low through the door with at least $1.5 extra run speed.