How about powerlikes from real accounts? Would that be consideted fake for IG?
My first question to you is, what do you consider a powerlike account?
I consider a powerlike account to be 100K+ real followers, with real engagement. Usually 2K+ real likes and 100+ real comments per post.
Now, if you are buying these for cheap, that right there tells you they're not real accounts.
If the accounts are liking your posts just because you have great content, then you should not have lower engagement.
I handle many real accounts for businesses/brands and influencers. Some are small (15K-50K) and get engagement from small accounts. Their engagement is OK, not low as you report.
So, any engagement is good, but don't confuse powerlikes with engagement from small accounts. Anyone feeding you bull that 1,000 10K follower accounts liking your post is just as good as getting 10 1M follower accounts to like your post, is just taking you and your money for a ride.