In your sentence, and that is the topic, so no inversion normally takes spot. Moreover, the final clause is a statement, not a matter: that's working for a relative pronoun, not as a question term. Precisely the same would use if it were an adverbial. Review these two sentences: 实际应用上，如果有人脸识别的需求，优先选择使用双目识别技术的智能门锁，反应速度快，耗电较低。 https://zionplhqs.pages10.com/what-does-best-lawyer-in-dha-karachi-mean-71802229