I am a little confused on how this works. I want to make my smelting go fast but it goes like 100 metal frags per 15 seconds or 100 sulfur per minute. Please help.

We cannot help you unless we see your configuration.

My Bad...

{
  "Use Permission": true,
  "Speed Multipliers": {
    "global": 100.0,
    "furnace": 100.0
  },
  "Fuel Usage Speed Multipliers": {
    "global": 1.0,
    "furnace.shortname": 1.0
  },
  "Fuel Usage Multipliers": {
    "global": 1,
    "furnace.shortname": 1
  },
  "Output Multipliers": {
    "global": {
      "global": 10.0
    },
    "furnace.shortname": {
      "item.shortname": 1.0
    }
  },
  "Whitelist": {
    "global": [
      "metal.ore"
    ],
    "furnace": [
      "metal.ore"
    ]
  },
  "Blacklist": {
    "global": [
      "item.shortname"
    ],
    "furnace.shortname": [
      "item.shortname"
    ]
  },
  "Smelting Frequencies (Smelt items every N smelting ticks)": {
    "global": 1000,
    "metal.ore": 1000
  },
  "Debug": false
}​

Make sure you've granted the permission to use it :) and what's your server FPS. Also do not change smelting frequency - this is making it SLOWER.

How do I make it faster? and Idk what my server fps is. I also have the perms to use it.

Set frequency to 1 as it was by default :P