Did you try to recreate it with another crop size ?
With just the playground ?
I think that resolution is not the problem, in last version i didn't noticed any problem in any resolution. Now There are problem with small and big scenes (compare two links above, there are big and small scenes - not TVs).
Can Support tell if and when will fix that (or give possibility to change parameter of compression?).
(this is very important for me)
PS. I want to use Panotour for events, size and compression is not so important but quality yes, so possibility of choosing that parameter could be useful)