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DDOS attack: protection with Thread.Sleep ()?

If I introduce a delay Thread.Sleep(x)in rendering my HTTP response, where it xwill change depending on the speed of requests from this IP: from zero, and the speed of the request is low, and gradually increases if the requests follow one after another.

Is this a viable DDOS protection solution?

What are the weak points?

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No, it does not protect against DDOS attacks. It protects the processor from overload, but it still takes up a thread while it is sleeping, so an attacker can easily take all the assigned threads on a web server, which makes it immune. This actually facilitates the execution of a DDOS attack.

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