Scraper Settings? Barely Able to Extract 500 users in 3 days with 9 accounts

I am using 9 scrapers with 1 main. I am using the follow scraper tool and I have only 2 filters which are no private users, and 300-25000 followers. I have 1500 sources I am scraping

I am wondering how many users I should be getting per day since I am getting only 300-500 in a day

Do you guys have better results since I am trying to get between 8000-10,000 scraped per day.
Do I just need to increase scrapers? or is there some other reason like I need to slowly increase scrape settings