Vanda Sansai Blue with discolored spots on leaves

[Sak_ikim_lol]

Hello, this is my first thread here. I´m from Yucatan (you know the Mayan culture) and I´m writing to look for some advices.
A month ago this Vanda Sansai Blue came to my collection. It was dirty, so I washed it. You can see that it has guignardia fungus, that I know how to control, but it has those discolored spots on lower leaves, that I think are due to lack of some element in its fertilization. In addition during washing I found a spider net between the roots so I suspect too that the discolored spots maybe are because some kind of red spider. After all I think the plant is fine, just it had not a good growing, because the three top leaves are ok, without guignardia or discolored spots and those tiny yellow spots on the new leaves it seems to me that they are the result of mechanical damage or insects bites.

Am I right? I really appreciate your opinions.

By the way my nickname (Sak_ikim_lol) is the Rhyncholaelia digbyana Mayan name (digbyana grows in this part of Mexico):

Sak=white,
ikim=feather,
lol=flower (no LOL laughing out loud :-) )
So the translation is "white feathers flower", nice, isn´t it?

Thanks!!!

Mario