How to speed up the opening of the phone book and the searching for contacts?

[AC Question]

I am using Lenovo S930 smart phone. I find it takes longer and longer to open the phone book apps/ contacts. or searching for contacts or someone. Sometimes, if even freezes.

Apple

 

[B. Diddy]

Welcome to Android Central! How many contacts do you have? This might happen if you have tons of contacts.