Input lag with sqm enabled

i have tp link archer c20 v5 with 22.03 and 19.07 previously.
whenever i enable sqm using cake i get a/a+ on bufferbloat tests and my ping ingame is stable most of the time espcially when using layer cake ,however the game feels so slow and laggy as if im using vsync on .
i wonder whether is it supposed to be like that?
btw i have adsl2+ 13 mbps down and 1mbps up