we rewrote the sitemap creation process. Now the sitemap contains 43.000 URLs. 20k more than before. We have daily changing in URLs. The script that is creating the complete sitemap takes more than 30h. So we can not build it every day. Lets say that increasing the speed of the script is not possible.
What should I do? A: Stay with the 23k URLs and update it daily B: Increase number of URLs to 43k and update it weekly