Marami namang dahilan ng slow internet connection issue. Isa ay maaaring ang Cell Tower (Smart) in your are ts is experiencing congestion specially peak times. or maybe may gumagamit ng signal booster sa area nyo.
as per experience po ang sagot not applicable to all.
Minsan talaga may time na mabagal ang net lalo kapag data kalang. Wag kana magtaka, Cam Sur ka pala, sobrang tago ng mga cell sites dyan puro bundok pa.