I don't think it was that soon, or else Mary I would have faced more resistance when she completely abolished Protestantism and burned its followers at the stake. Compare her reign with that of Mary of Scots, who was also Catholic but recognized that it was not possible to eliminate Protestantism in Scotland, and adopted a moderate stance.
The Church of England also had a shortage of qualified clergy early in Elizabeth's reign, and consequently was forced to ordain many priests who had little or no religious instruction. But over the course of her reign the quality of the clergy improved.
It also seems that Protestantism initially was practiced mainly in the south-east and gradually spread to the rest of the kingdom, but in some places (like the north) Catholicism remained strong for a long time, into the reign of James.
I would guess that overall, it was at some point in the second half of Elizabeth's reign that a majority of her subjects identified with Protestantism (in whatever form). In the south-east it would have been sooner.
The moderate stance being making illegal any Papal office or jurisdiction and doing everything her majority Protestant council tells her to do, or else.
The Kirk btw takes the view that the order of precedence is God, Jesus, The Kirk, everyone else which tends to mean that the everyone else resents the Kirk.
The Quality of clergy is general across England, ( the world probably) one of the many factors in the Pilgrimage of Grace was the perceived threat to the poorly educated Catholic Clergy of the North by the Protestants demanding that they ' look to your Books sir'.
For most Clergy the attitude seems to have been that of the Vicar of Bray
'The vivacious vicar of Bray living under King Henry VIII, King Edward VI, Queen Mary, and Queen Elizabeth, was first a Papist, then a Protestant, then a Papist, then a Protestant again. He had seen some martyrs burnt (two miles off) at
Windsor and found this fire too hot for his tender temper.
This vicar, being taxed by one for being a
turncoat and an inconstant changeling, said, "Not so, for I always kept my principle, which is this – to live and die the Vicar of Bray.'
The problem is when your main concern is daily survival which is the case for most people the niceties of theology and Papal supremacy, Idolatry and Superstition vs veneration are pretty irrelevant, if the Vicar, Priest or local Magistrate says this is right then folk are fine with it. Its only where you get sufficient funding and leisure time to access books and argue the toss in the local that it might become relevant, which tends to be in cities and seaports, if you are in a seaport even comparatively poor people have access to books and educated men ( who also drink in taverns) and time off as your working day is regulated by tide and wind not sunrise and sunset. As most of the ports and cities are in the south most of the expression of thought is found there. And ofc being closer to Europe means easier access to thought from elsewhere in Europe so the Protestants executed by all the Tudors tend to be from the South East and East Anglia, this says nothing about religious sentiment generally. The Calvinist view is also the view of the Kirk in Scotland so anyone advocating separation of spiritual and temporal power is going to oppose that doctrine.
The whole thing gets extremely complicated at the local level as opposition to a local Protestant or Catholic landowner ( who may be a considered believer) may have nothing to do with their religion but more to do with him enclosing common land.