From wikipedia
//"Humbucker-equipped Strats are often referred to as "Fat Strats", in reference to the fact that humbucking pickups usually tend to have more bass in the output signal than single coils, thus making the sound "fatter".//
...none of which fits the description you've given.
Or, do you have any reasons to believe that this item was "pre-owned" i.e. that somebody's whipped out the original humbuckers, for their own purposes, shoved in some $10 imitation pickups and sold it on?
(Fake pickups = total lack of authentic Strat sound)
Also, near the foot of the wiki page, a section called "Squier Stratocaster" says (my emphasis)
"A standard Squier Stratocaster is mass-produced in factories located in Indonesia or China. For its construction, Squier usually uses ___woods readily available in those countries, such as agathis and basswood___. They also use stamped metal hardware and multiple pieces of wood in construction to reduce waste and to lower costs. In some cases, the body is laminated, much like a plywood, rather than consisting of two or three solid pieces glued together."
The thickness of the body, the type of wood, whether it is one solid piece or several glued together all has a bearing on the tonal quality of the instrument. If you want it to sound like a real Strat, then buy a real Strat.
(Not trying to be rude. Trying to help.)