Upload Speed Issues

Hi Everyone,
My application uses to work just fine in Dev and Live version but now that I have been using it for some time the upload speed to my database in the live version has drastically decreased…
I use a lot of images (mostly for icons, but still) so it probably is because of that, but I would like to keep it working, if you guys have any ideas that might help me, That would mean a lot !
Thanks in advance !