try it and find out..
i barely get anything mining securecoin on my slower pc..
i had to make a mod and do a lot of experimenting in order to get any submitted
![Sad](https://bitcointalk.org/Smileys/default/sad.gif)
when you get slower the harder it is to get shares accepted.. and the more cpu miners you run the slower you will get.
this should go with out saying.. i don't think you have done much research or know how this stuff works yet.