I wonder why Le Sserafim members are not that popular in China

I just saw a tiktok where fans compare the c-bars preorder from each members of different groups and I was shocked to see how well Newjeans and Ive (minus wy and yujin) doing there. Why do you think Le Sserafim members other than Sakura unable to gain more fans in China? They have a member that popular in China, good visual and good songs. I just wonder why chinese fans not really fall for them like the fall for Ive and Nj members when Lsf seems to have a good recipe to be really popular in China too. It's crazy that visual like Kazuha and even Chaewon not giving much attention there.