私の家に問題があるみたいな言い方をされる方もいるので
朝方のも情報を書いてみる
Pinging google.co.jp [72.14.203.104] with 32 bytes of data:

Reply from 72.14.203.104: bytes=32 time=46ms TTL=52
Reply from 72.14.203.104: bytes=32 time=46ms TTL=52
Reply from 72.14.203.104: bytes=32 time=47ms TTL=52
Reply from 72.14.203.104: bytes=32 time=46ms TTL=52

Ping statistics for 72.14.203.104:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 46ms, Maximum = 47ms, Average = 46ms

普通にユーザーが増える時間帯だけ遅くなるようだ
土日とか平日夕方から夜