This is just a further demonstration of what you have already admitted: you
have no idea what you are talking (asking) about.
In lay terms: For a given thrust; a lighter mass will achieve a greater
acceleration. For instance, a car with a 200 HP engine that weighs 1,600 lbs
will accelerate faster than a 3,000 lb car with the same engine.
Payload, thrust, mass, etc. these values are all relevant if you are truely
going to make such a calculation.
Paul