I have a Konica Minolta Dimage G530 5Mp camera.

Using SD cards on continuous shutter setting it takes about 4 seconds 
between exposures.  I presume this lag is due to the time taken to load 
the image into the SD card.

I want to get this time down to 2 sec or less.  If I buy an "Ultra" SD 
card (such as sold by Sandisk) will this achieve that?

I have tested different photo resolutions by setting the camera down to 
3Mp, 2Mp, VGA etc but it always takes 4 sec.  So, is it really the card 
or is it a natural limitation of the camera if so I'd be wasing my money 
buying a faster card.

Thanks in advance,

Chris.