Going viral on Tik Tok / Question

Hello guys, I have a question regarding growing a new tik tok channel.

For example. I live in germany and want to make an account about fitness/travel/food or whatever.

Is it better to start talking in german or english? I mean, I heard that tik tok show your videos to viewer which are in same region like me right? So I ask myself, if thats the case, its better to speak german, so people are more likely to understand me right? Maybe later, if account is growing to switch to english? You guys have experience with it?

thank you!