IPhone 4 performance problem?

I have iPhone 4 and its lagging how i can boost the performance, what apps i need to do it and what are the things need to do to avoid this.

Get iphone 5

Time for a new phone! The 4 is a bit out of date now

I have an iPhone 4. I don't seem to have any major performance issues. I did all updates as they have come out. Are all of your updates current? Check to see if there's any improvement by turning off Wireless? As a last resort maybe try do a reset on your phone then apply the updates before installing anything else.

Any other questions let me know?