In the battle of Britain the Germans had very limited fuel once they were over England. The Brits could rearm and refuel very quickly.
The Hurricanes could turn tighter than the 109's.
That and Hitler was running the show and he knew nothing about military tactics. Luckily for the Allies.
There is nothing more vicious than a man defending his home and family. Hitler underestimated the stubborn grit of the British airmen defending their homelands. The ME 109's were faster and more maneuverable. Except coming in hampered with the weight of bomb loads. But the Germans had to face clouds of determined Spitfires as they entered, and as they left England.
The attrition, on both sides, was enormous.
The Spitfire held the advantage, More HP by almost double, and higher operational ceiling. A faster climb rate despite being being heavier. In truth, the better aircraft in a dog fight.
Stats here
Spitfire vs Bf-109 – Comparison – BVR – Dogfight (aviatia.net)
A good analogy would be road rage battle between a one ton Dodge diesel pickup and a Ford Mustang convertible.