I played games at 30 fos for the LONGEST when i was younger. It never bothered me then, but now that im spoiled with 100+ fps as soon as it hits 55 and lower i notice immediately and start to get annoyed
Actually depends on your gameplays purpose if pvp you need 60 fps or better, as for pve 30is more than enough you compensate the lack of fps with gameplay level and pattern anticipation.