Aporte original por: bastro ,
there can many reason of this issue but mostly it happens because of slow computer freezing or dust inside the computer . use a air blower and clean the computer while its turn off and remove some of programs which is using lot of your processors power and memory . try updating the computer it also helped many people in this problem . try cleaning some software and clean computer use this post [https://goo.gl/V0abkg|10 ways to make your computer faster] and see if this also helps you .