Drop in Instagram engagement since moving country

I moved from Canada to Australia three months ago, and since doing so, I’ve seen a significant drop in engagement on my business Instagram account. If we take likes for example, I’m getting 60-70% fewer on average per post.

As a lot of people find my work through hashtags, my first thought was that I was missing out on the large northern hemisphere market (essentially posting when they were asleep). I therefore tried posting at the same time I used to post in Canada, but it made no difference.

I also tried removing my location completely from the profile – again with little effect. It also doesn’t appear as if I’ve been shadowbanned.

This is a huge frustration. Does anyone have any advice on the issue?