I already filtered out all the major tags that are usually in CN (such as Cultivation, Xianxia, Wuxia, Xuanhuan, and Ancient China), also the major groups that translate a lot of CN (WuxiaWorld and Webnovel). I'm tired of seeing trash (as in novels that I will never read) filling my front pages. I would rather see no updates rather than those things. Just to be safe, I already read a lot of those and had decided to cut them off, for reasons.
Thank you, but I am afraid of using that. For now, I'm changing my NU bookmark to the series finder that excludes all CN releases. It solves my problem, though it will take a while to adjust to the new look. It is kind of better, too, as it also shows genres and many more. So, I'm closing the question. Thank you, again.