Hello! I have a laptop Toshiba Satellite T135D for 3 years, but I used it less (like 2-3 months). My PC broke down, so I started using more laptop.I use it only for: League of Legends, skype, music and watching serials. Still moving slowly... for example: I keep open just the game (with settings on low), but still has moments of lag.I don't need more, just what I mentioned above ! Can I make an upgrade, or whatever, to make it move better?