It seems the mod isn't affecting the speed or output multiplier at all, up or down. Mine was set to 50 on both, and I was getting the Vanilla rates. I jumped to 250, 500 and 1,000 no change.
This was with reloading the mod each time, even leaving the server and logging back in. No change.
Current config for my builder server.
{
"Use Permission": true,
"Speed Multipliers": {
"global": 1000.0,
"furnace.shortname": 1.0
},
"Fuel Usage Speed Multipliers": {
"global": 1.0,
"furnace.shortname": 1.0
},
"Fuel Usage Multipliers": {
"global": 1,
"furnace.shortname": 1
},
"Output Multipliers": {
"global": {
"global": 250.0
},
"furnace.shortname": {
"item.shortname": 1.0
}
},
"Whitelist": {
"global": [
"item.shortname"
],
"furnace.shortname": [
"item.shortname"
]
},
"Blacklist": {
"global": [
"deermeat.cooked",
"bearmeat.cooked",
"fish.cooked",
"horsemeat.cooked",
"chicken.cooked",
"meat.pork.cooked",
"wolfmeat.cooked"
],
"furnace.shortname": [
"item.shortname"
]
},
"Smelting Frequencies (Smelt items every N smelting ticks)": {
"global": 1,
"furnace.shortname": 1
},
"Debug": false
}