Currently a sponsor PM. Love it but difficult to get promoted. Is it worth looking at CRO PM roles?

Hi all, as title says. PM right now for a large sponsor (been here 3 years) and quite enjoy my day to day work and my job. I also enjoy the flexibility, benefits, and general culture of working at a sponsor.

However, I find the promotion process to be difficult and I don’t see this happening anytime soon - although I feel eager and deserving. The pay increases have been minimal.

Is it worth considering applying for more senior level clin ops roles at CROs? Or should I just be happy I have a job with a sponsor? Any input would help. Thank you!