CANON Power Shot A1100 IS Why So slow between shoots???

I have a G6, I bought my Mom her very own A1100IS a few years back, and something has got me perplexed. Every time she or I, takes a picture on any setting, but mostly on EASY or PORTRAIT, it takes a long time, maybe 15-20 seconds to be ready to shoot again. I use nothing but Energizer rechargeable Nickel-Metal hydride AA batteries, Fully Charged.

I have gone to Menu,
REVIEW and REVIEW INFO are both OFF.
FILE NUMBERING is CONTINUOUS.
RED EYE CORRECTION is ON.
AF-Point and AF-assist are both ON.
DISP. Overlay is OFF
IS MODE is Continuous.

What could be causing this problem with waiting SOOOO long to take the next picture? Thanks!!!

I don't own an 1100IS but some Canons do have a menu entry for battery type. If your camera does, make sure it is set to rechargable batteries. Remember that a rechargeable is a 1.2V battery whereas an alkaline is a nominal 1.5V battery.

I have used the Energizer NiMh rechargeables and, honestly, didn't think they were very good. I've had much better luck with with Sony, Powerex (which are excellent!) and Sanyo Eneloop batteries. Even the cheapo Ray-o-vac rechargeables did a better job for me than the Energizer or Duracell rechargables.

Is this using flash? With 2xAA cells it will take afair while for the flash to recharge.