Oncidium Parquet ‘Uptown Girl’ pleating and doing badly overall

[greyblackfish]

Howdy howdy, I got this oncidium here that I got last year. It started out great but always seems to grow very slowly.

I started out growing it in mainly sphagnum with a bit of bark in the medium and a slotted pot which I hate now and will not use anymore. The leaves are growing very slowly and a pseudo bulb is not forming. I repotted into a bigger pot hoping it might help with the pot being dry so much.

Now the older leaves have yellowed and dropped (is that seasonal?) and the new leaves are growing smaller. So far it had been under pretty bright light. Now it’s in front of a window and gets medium levels of sunlight.

Please help!!!

Btw I have an oncidium gold dust grown under the same care that is growing wonderfully and even flowered this month while still young. Please see the second image. I’m proud of it