There should be no need for tuning, tweaking, or optimizing on functionality this basic.
If you ask the processor, it will spit out a graph like this telling you what threads/cores share resources, all the way up to (on large or server platforms) some RAM or PCIe slots being closer to certain groups of cores.
The headline margin of error only applies at the centre (50%), and decreases towards the extremes.
https://en.wikipedia.org/wiki/Margin_of_error#Specific_margins_of_error
Wikipedia says that for a poll with 1013 participants and the same headline margin of error, a 2% result would be ±0.8%.
It's more likely that this is the crowd who deliberately gives the most absurd answer possible.