Are you using any power saving /power management tools? Maybe check the power settings in there and see if changing the power profile makes any difference.
Also:
Check fwpudmgr for any firmware updates
Try installing a more recent/optimised kernel, such as Xanmod (currently at 6.7.4). If you’re getting Xanmod then get the x86-64-v3 variant
Try a different distro, preferably one which has more recent packages. Fedora uBlue has an Asus variant which features an optimised kernel for Asus laptops, so it might be worth checking out.