1. It may not find the right audience. The data shows that among the audience watching The Legend of Chu and Han, there are more female audience than male audience, and more young audience than old audience. This may lead to unsatisfactory ratings, because the preferences of female audience and young audience may be different from those of male audience and old audience.

2. Intellectuals may be serious about this play, and their interpretation of historical events and criticism of the plot may lead to some controversy and criticism.

3. The promotion of the play may not have attracted enough attention. In today's media environment, the success of a drama is often inseparable from strong publicity and promotion strategies.

In addition, the quality of the drama is also a key factor. If the production quality of the series is not high, the plot design is unreasonable and the role shaping is not in-depth, it will be difficult to attract and retain the audience even if there is no better publicity and promotion.

Generally speaking, the success of a TV series is often a complex problem, involving many factors. For Chu-Han legends, it may be necessary to improve the plot design, audience positioning, publicity and production quality in order to win more audience and praise.