can someone PLEASE tell me why my audio is delayed when recording with ffmpeg? nothing ive tried seems to work

my command is:
ffmpeg -use_wallclock_as_timestamps 1 -async 1 -vsync 1 -f pulse -i alsa_output.pci-0000_00_1b.0.analog-stereo.monitor -f x11grab -i :1 out.mkv