Repot or not? When?

[tsun1108]

I bought this mature flowering NoID white phalaenopsis from local market as a bargain 1 week ago.

It was 60% flowering at that time with 4-5 buds on the spike. As you can see, since I have gotten it, the rest of the buds all bloomed and one of the one at the end is just about to bloom.

I have a few questions re this plant

1) The plant seems to be sitting a bit too high and in a funny angle which looks like it's about to topple over and is only being supported via the stake.

2) The plant has been planted in what looks like a bark mix and with a clear pot which unfortunately has got quite a bit of algae in it (the seller reassured that it's common for clear pot and is not harmful for the plant).

Peaking through the pot, I can see some green rots and not sure if there is any rotten one as I cannot see through algea.

3) One of the bottom leaf is slightly wrinkled but otherwise green without signs of yellowing.

My question is, should I repot this plant?

If so when would be the best timing? After it finishes flowering?

I have attached the pictures of the plant and sorry for the crappy smartphone camera quality.

Your opinion will be much appreciated seeing I am very new to the orchid world (but already getting a little addicted!)

PS: the pot looks rather wet so personally I have not watered it at all since I have gotten it. Also it's summer in NZ currently therefore I have put this plant facing a SE window but rather far without any direct sunlight.