1st: You have an I3, which means if your multitasking it's going to be slow.
2nd: If you have 4GB of RAM, I suggest you get 8GB of RAM to speed it up a little.
3rd: If you have Windows you can go in disk defrag and speed it up a bit.
4th: If you have Windows you can go into settings and change the apps that start up when you boot the laptop.
5th: If you get an SSD you can speed it up just a bit.