What makes the schools bad, if they receive on-average marginally higher per-pupil funding than mostly-white schools [1]?
[1] on average, both Black and Latinx total per pupil expenditures exceed White total per pupil expenditures by $229.53 and $126.15 - https://journals.sagepub.com/doi/full/10.1177/23328584198724... - I can't find a source now, but the average per-pupil funding is around $20,000, so a difference of $200 is negligible.
If you're surprised that the funding is almost the same, despite schools being funded by property taxes, which are much higher in whiter neighborhoods, that's because you were hoodwinked by the media. Schools are funded by local property taxes and state taxes, with the latter distributed to even-out the funding. For some mysterious reason, the latter funding source receives much less coverage than the former.