Well' i disagree on the synthetic superiority claim. If bleeding air form a hydraulic brake system and draining mineral oil faster than topping up the master cylinder, more air will be drawn into the system. If doing the same thing with a synthetic snake oil.. the result will be exactly the same.
If using a higher octane fuel and leaning out the fuel/air mixture, the piston will likely expand and weld itself to the cylinder bore during a high speed run.
High rpm = high temperatures, which requires high oil presence. All oil ratios smoke at idle speed. During high speed runs, smoke clouds are less intensive. Doesn't matter if its mineral, synthetic or castor bean.. higher combustion temperatures burn oil quicker.
Those with very high strung motors who pay extra money for the benefit of castor bean oil, and then reduce the oil ratio are throwing money down the drain. Some folks ride a motorbike, snowmobile or dinghy tender with an oil injection system.. and somehow expect premixed fuel to burn just as clean.
If you put a higher rpm exhaust and or larger capacity cylinder kit on any 2 cycle engine, the oil mix ratio must be higher than the OEM manual specifies. A paramount fact only novices and internet trolls would disagree with.