Hi Everyone

I created this Timelapse recently. There is a lighthouse to the right of the frame. Does anyone know a way I might reduce the flickering? Or is it impossible because of the lighthouse. There are other problems with the TL that will mean I have to go back to reshoot, but for the purposes of this forum, I'm really just interested in people's thoughts about the flicker.

https://www.youtube.com/watch?v=ZlJK007Sj0s

Thanks!