That's totally fine, it will slow down slowly over the next year.
Pups don't really have a fully formed digestive system so what goes in must come out pretty quickly. It takes time to slow down. About 4 months maybe 4 times a day, maybe 6-8 months 3 times a day. Then they start to get pretty regular. At 4 years old my boy is 1-2 times a day.
Oh and the night time, you need to go out more. So when my guy was a pup, it was first thing in the morning, before I even went. Get him out. After he ate breakfast before I went to work, probably going to be another. Lunch time another, afterwork or after supper, another. He wuold settle down around 9:00 p.m. before he settled down another trip outside. Then I went to bed between 11:00 and 12:00, he would go out again then. This was even on weekends. The morning I get up and let him out get him breakfast then go back to bed. It's all part of raising a pup.