Acekard 2 Card Not Working

I have a acekard 2 card for my ds. I've had it for a year and its been work fine until aweek ago and now it takes awhile to load. Also some of the games don't work first time around so i have to take the card out and put it back in. Then i get it to work and it will not save or it freezes on me. Can anyone help please. :'(

Backup your files and format your MicroSD. It could just be that things are acting slow do the file fragmentation.

Also make sure you are using AKAIO.

Thanks for that guys. I did try all that. After using the AKAIO the mac was unable to read it. So formatted on PC with out using AKAIO. Cant i get that promgram for the mac.
Thanks
:)