Does anyone else find that the Uzbek places in Queens tend to be rude?

I've found that I have gotten much much better service when going to these places with Russian speakers. However, when I've gone by myself, I often find myself ignored on one extreme and on the other, simply receiving surly service. The places I've received this kind of treatment include Grill Palace, Salut and Troyka among others in the neighborhood. By the way, I absolutely love the food at Grill Palace which is why I continue to return- I just wish the service would improve for non- Russians. Does anyone else feel this way? Also, I haven't tried many other Uzbek/Russian places because the outside of the establishments are so uninviting (drawn curtains/lack of posted menu, etc).
*On a similar note, what do you think can be done to improve this situation? I would hate to see my neighborhood that I grew up in become isolating; it should be the complete opposite.

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Salute
63-42 108th St, Queens, NY 11375

Grill Palace
64-19 108th St, Queens, NY 11375

Troyka
102-55 Queens Blvd, Queens, NY 11375