What updating to A15 did to my 7a

After updating my pixel 7a to Android 15 my battery life has dropped significantly getting only 3-4 hours of SOT. Charging rate has dropped as well taking a lot longer to charger now. Before android 15 I absolutely loved the clicks and now it seems like camera got nerfed as well. images are now horrible. I bought 7a a month ago and now I regret buying this crap