Oppo A40 is not good at all

Bought this phone in June from Cellucity Clearwater, went in for a Huawei and the salesperson showed me the Oppo, the version he sold me looked like a fantastic phone only to find its a **** phone: downloads are slow, the phone magically jumps to the home screen when busy typing or surfing, the BATTERY is a JOKE (if i make one full day then its alot), watching tik tok or you tube then the phone gets stuck after a while and must reboot the whole phone. Ya no, I think i would've been better off with the Huawei or Samsung. This phone sold me dreams but in reality is quite **** and now i am stuck with this A40 for 36 month cause its a contract.