Should I repot my Laeliocattleya now or wait?

[ceropegia]

I just bought my first Laeliocattleya ("Pisgah Fantasy"...I think it will be all-white with deep violet tips on the petals and lip since another plant with that exact label looked that way) today for 30 percent off at a local greenhouse! It has a bloom spike with four fat buds on it, and it has a lot of healthy pseudobulbs as well.

My question is about repotting. The plant is potted in peat moss with perlite...your standard potting mix for most houseplants. I'm not sure why this is, since this greenhouse is pretty well reputed and had a lot of healthy plants...

I was thinking of repotting it in a mixture of fir bark and sphag, but I'm afriad to do it while it has a bloom spike and ready-to-bloom buds. However, the media is very thick and soggy, and I don't want the plant to get root rot either. So should I repot now, or do it later?