On one side it is true and I am actually OK with it. But my wife has iphone 12 and it was fantastic at the time and now she always complains how slow and laggy

On one side it is true and I am actually OK with it. But my wife has iphone 12 and it was fantastic at the time and now she always complains how slow and laggy it is. I checked it myself and it is true. Of course it's been almost 4 years since the release but I don't think user software changed that much during this time.