2 hour feeds for first 2 months?

Sh

I’m a FTM and Went to the ped today and she wants DD to stay on a 2 hour feed schedule for the first 2 months of her life. She’s already surpassed her birth weight at 2 weeks old and has gained an additional 12 oz beyond that. Does this seem excessive to continue on this schedule. Ped is concerned my breast milk supply will dwindle if I try to switch to 3 hour feeds at this point. And she mentioned that breastfed babies cannot handle 3 hour feeds and that only formula fed babies could do that. I was hoping I could move on to 3 hour feeds soon so I could start pumping soon and getting more sleep! Any advice mamas?