3rd gen ipod touch really laggy with ios 4.1?

[Brandon]

ok this is kinda a 2 part question

first: i have ipod touch 3rd gen with ios 4.1 updated on it and when i play angry birds, doodle jump, need for speed, and others it is lagging alot and wont really respond right away if i upgrade to ios 4.2 will it take away this lag or will it be the same or worst?

second: if i do upgrade will i lose in game purchases like i bought the 4 car packs in need for speed shift. will i lose thous?

thanks for any help.
it is not jailbroken and the car packs where bought through the game and aren't on itunes itself

[NATE95]

is it jailbroken?

if u upgrade to the next os it shouldnt remove the car packs if it does im pretty sure u can re download any purchased item on itunes if not ask for a refund