More views than people in Telegram
Solution 1:
Telegram is funny in that views can accumulate and a person can count for more than once.
Old views are still counted for hours afterward. Whenever you open the channel and see the files, the views number will be updated by one. Forwarded copies of your messages are also counted as views.
In short, don't worry - the views number is just inconsistent. It doesn't mean the number of currently viewing persons.
Solution 2:
Telegram channel views don't show the number of accounts that have viewed that post, and also don't show how many times people opened the channel and saw that post. I think it is not reliable at all. But maybe we can say it depends on the number of IP addresses that have viewed that post, as you change the network you are connected to, and open a channel again, the views of recent posts may increase by one. But i'm not sure about it. You can be sure the number of views on a post is always a good approximation to the real views, mostly more than it, but never exactly reliable.