Shandong built a 17-7 lead at the beginning of the second set, while Tianjin found it difficult to erase the deficit.
The 19-year-old Pole needed just 68 minutes to avenge her exit to the 2018 champion last year in Paris at the same stage.
Mikel Oyarzabal's penalty after a slightly harsh handball decision opened the scoring in the 29th minute and Real Sociedad had the game completely under control before goals from Mikel Merino and Portu in the 78th and 81st minutes assured the three points.
Zhao Xuetong had 19 points for Sichuan, Hu Yueming and Gao Song each got 17 points. Shen Yi contributed 18 points and eight assists for Dongguan.
With starters back on court in the third quarter, Shanxi pushed the lead back to double digits on Wu Tongtong's three-pointer with 2:50 remaining before going up 63-56 heading toward the final 10 minutes.
"As a young team, we didn't deal well with some details, including defense on Wu, and some mistakes in transition. But I'm quite satisfied with the team's play against such a strong team as Shanxi," he pointed out. Enditem
The pair have not played for their country since the Cafeteros' penalty shootout defeat to Chile in the quarterfinals of last year's Copa America in Brazil.
Jiangsu played a more aggressive game in Tuesday's faceoff with Shanghai, which had led the championship group before the third round. In the 70th minute, Wu Chengshu received a pass from the left side and rifled an effort into the net, helping Jiangsu gain a 1-0 lead.
Han Xu got 13 points and 10 rebounds for Xinjiang who had another four players scoring in the double-digits. Enditem
Atletico Madrid at home to Villarreal is Saturday's most attractive game, with Luis Suarez likely to start in the Wanda Metropolitano as Atletico looks to improve on its flat showing away to Huesca in midweek.
"I've had two fantastic years here at Sydney FC and have cherished every moment of my life in Australia," he said.