Samus will be slowed by lava if SpeedBooster is equipped, even with Gravity.

Requires:

{
  "or": [
    "h_lavaProof",
    "canSuitlessLavaDive"
  ]
}
"Gravity"
"SpaceJump"
{
  "heatFrames": 340
}
{
  "lavaFrames": 280
}
{
  "or": [
    {
      "disableEquipment": "SpeedBooster"
    },
    {
      "and": [
        {
          "heatFrames": 120
        },
        {
          "lavaFrames": 120
        }
      ]
    }
  ]
}