is it common for this model of macbook to collect dust quickly?, because I am having some issues with my macbook, playing a game for a while (maybe 10 minutes) causes the fps to drop the longer I play, if i close the game i can feel the computer become much cooler, once it cools down i can play the game for a while again, but this seems like overheating. i think it may be overheating because of dust buildup (i can actually see bits of dry grass and stuff in the fan, ugh) the computer is used so i have no idea what got in there
, so is it worth it to open the laptop and clean the interior? or is it more likely to damage something in the process?.