As D3MON was saying in this thread 'Can i use VP 25 in a traxxas jato', you may want to try a different fuel with less oil content. Your video did not show it is loaded.
Lean out the low speed, will give less fuel to the engine, in a low speed environment/idle, the engine does not need too much fuel, if there are too much fuel, it will become loaded.
If you rich it out a bit, you will have to close the slow speed needle a bit, may be 1/8 to 1/4, so you will have less unburned fuel, so, it will not be loaded.