run faster

As the title, what can I do to make my laptop run faster? What already helped for me was turning off several start up programs, and deleting things that take up a lot of memory space. I deleted about 33% of my memory space. But a certain game I can still play on my old laptop at the fastest...

I am using an iPhone and I installed pretty much games, apps and it is becoming more slow. Can you guys tell me the ways how to make my iPhone run faster? or at least improving its performance better?