How to change camera viewing angles / placement of the object for novel view synthesis

Hello,
My input is single view image of a horse. My expected output is the video circling around the horse.
I am trying to synthesize novel views of a horse using the video runner: https://github.com/3DTopia/OpenLRM/blob/main/openlrm/runners/infer/lrm.py

My issue is; the video that gets generated is not leveled. It is not moving in a perfect circular trajectory around the horse. Either there is a camera trajectory issue or the plane that the horse sits on is slanted.
https://youtube.com/shorts/E8R2edMLpPA?feature=share

How do I make changes to the camera offset angles / trajectory so that I can solve this problem?
Kind Regards,