Too many requests per second. How to fight?

Question

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I have a callback bot that sits in 5 groups. At the beginning of the hour, most groups publish a post, followed by a stream of comments. Accordingly, if there is a lot of deleted content, then the bot cannot delete the post.
How to be?
I don’t really want to create 4 more accounts and talk once again with group administrators.

Answer 1

This problem occurs mainly for unpopular applications. For applications that have a large number of installs and daily visitors, the limits are revised over time.
I made a delay of 300ms between every 3 requests to the VK API, which solved the problem.