Recommend settings for Galaxy Grand i9082. Help needed from the experts :)

[stodag]

you don't necessarily get speed with a custom rom.. what it will do is free more ram ie: removing bloatware(all crappy stuff that companies add)..
Some custom roms have a kernel attached but most don't.
A custom kernel gives access to a locked CPU clock etc.
Tutorials are there, and easy once you get the hang of it
Eg: I overclocked 1ghz galaxy s to 1.3ghz.

You can also use a custom kernel on stock rom... so no need to change rom, on some phones.

Edit: first thing like globe94 said, you need root access.. (PC required) Google superoneclick, run the exploit then just wait, that's it.

Sometimes takes 10 mins.. don't worry this is normal