Web scraping tunning issue

It really varies by use. I don't think anyone can give you optimal settings. You might want to talk to your FSE or possibly your account manager and see if you can get some guidance on optimizing ASM for your environment. It is possible this may involve a PS engagement, but if you're just looking to have bot detection optimized the costs should be minimal. They will need to look at the traffic flow for your website to answer these questions.

Alternately you can experiment with different values and see which ones get you the result you need.