At max run speed without SpeedBooster, you can bounce on both platforms and avoid all acid. Jump from the center of the rightmost X in the background. Bounce again on the second platform to avoid any Metroid or Rinkas.

Requires:

"canSpringBallBounce"
"canCarefulJump"
{
  "or": [
    {
      "obstaclesCleared": [
        "A",
        "B"
      ]
    },
    "canMetroidAvoid",
    {
      "metroidFrames": 200
    }
  ]
}

Dev note: Just doing the strat avoids almost all damage, so metroidframes values are mostly artificial.