i have lag when i play i don't know why
my GB ram is 4GB and Core i5
is video and music make my CP lag when i play
and i have only dragon ball nothing else
cuz i delete all my games and videos
There's 2 things that could cause your lag and you won't like the solutions:
1. Internet lag (high ping). The best way to fix this is to move closer to the server (Taiwan). You could try to use programs like WTFast but it'll give you limited help.
2. Computer lag. You can tell if it's computer lag because the game won't be the only thing lagging. If you play music and it starts to lag, it's computer lag. If anything on your computer besides the game lags then it's computer lag. To fix this, upgrade your computer.
Gamebooster just closes unnecessary processes but takes up resources itself. You can actually do a better job than Gamebooster if you know which processes you don't need. If something as small as playing music is lagging it though than the computer probably needs to be upgraded. (Which is surprsing because 4 gb and an I5 should be more than good enough). Check your resource monitor with nothing open, when it has only DBO open, and when it has DBO and something else open that causes it to lag. You should see what parts/processes are causing your computer to lag.