Engagement on TikTok posted through Sprout vs. natively

We've been posting our Tik Tok's through Sprout vs. natively, and one difference I've noticed is the decline in our views. When we were posting natively, we were able to add as many hashtags as we wanted in the post copy, which I think helped drive our views. Since posting through Sprout, I've noticed there is a character limit on the video description due to an API limitation. Because of this, we haven't been able to add in as many hashtags as before. My guess would be the decline in our views is a result of the lack of hashtags we've been using on our Tik Toks. Any other similar experiences?