I merged 3 classes into a single class, after i did that my page loading time was increased. Is there any relationship between the Loading time vs. Class size. If so How can i improve the performance, without breaking that huge class?
I wouldn't think this is your performance issue. Even if the class is pretty big it should load quite quickly. And it only has to load once. However, if you create many instances of it then it may consume quite a bit of memory.
What type of performance impacts are you seeing? Is it just at startup? Every time a method is called? Every time an instance is created?