so up until the recent times, my laptop was able to run Minecraft at a minimum 90 fps (bedrock and java) but recently as per the update 1.20 my fps has to dropped to around 30 fps. it does run better at other versions but the server i play doesnt seem to support older versions.
i see, i usually take full scans and dont find any issues pretty much. maybe it’d help if you can mention the AV software you’re using.