would you be able to recommend good restaurants and shopping by Wutaishan Sports Center in Nanjing?

The closest shopping paradise is the Xinjiekou area, which is about 2.5km from your hotel.

I am not very clear about the good restaurants near your position, but I know many excellent restaurants in Xinjiekou area. Would you mind tell me what kind of food do you want to taste? I can tell you some based on your requirements. Around your place, I only know some cafes such as Xiangxie Cafe.