Is my Intel core i5-2320 good enough to run Fortnite battle royale

i have a Intel core i5-2320 but when i play fortnite in low stressful situations my fps stays around 120 fps stable. but in competitive scenes it uses more resources and i get 30 fps and its not stable, textures take a long time to load in and sounds are delayed… is there a setting that i have turned on that shouldnt or is my cpu just not good enough and i should just get a new one?
in task manager fortnite is usually always using 80-100 percent of my cpu
so should i get a new one or is there anything i can do?