What am I doing Wrong?

Here are my stats:

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Why am I growing so slow?

I've been scraping users/photos from my niche's (cars/luxury) big user's followers and I post about 2-3 times a day during peak hours. I don't find my content low quality as well, and my engagement is horrible. I've never bought any followers as well so they're all real but very ghost-like.

Here's an example of my post:

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What am I doing Wrong?