got many 429 status code when crawled the target site,even though proxies. How to optimise my code?

Hi,guys. I am a python coder but not good at nodejs. I make a crawler to bulk check the infomation by the crawlee. This is my option : useSessionPool: true, useIncognitoPages: true, and I using the Residential Proxies . But I found that the ip of some pages as same as the others. I want launch diffrent browser context in each target url . But I don't know how to do that. Anybody could help me ? Sorry for my poor English . Thanks