FollowLiker struggling to follow as many users as I ask it to

Hello! Lately I noticed FL struggling to follow as many accounts as I tell it to. I'm wondering what is wrong.

I ran FL in a virtual machine 24/7

My scrape user settings:
- Scrape User Limit: 40
- Scrape Only First Results
- Ignore Private Users & Ignore Users with no Profile Picture

My follow user settings:
- Follow Limit: 5 to 10
- Daily Follow Limit: 450 to 550
- Delay Follow: 35 to 70 seconds

Automation Interval: Between 3 and 6 minutes

In the last week I saw FL only following between 200 and 300 persons a day.

I do have enough accounts to scrape so that shouldn't be the issue (even though I get a lot of notifications telling me that x account has already been followed)

Do you have any other recommendation?

Thanks!