Why Apache Tomcat server struggles to load Camunda's Welcome web page?

Hi to everyone.

I would like to ask the reason why Apache Tomcat server (which runs locally on my device) doesn’t load right away Camunda’s Welcome web page.
Whenever I run the start-camunda.bat file (for the 1st time during the day), I need to reload again and again the web page in order to see Camunda’s Welcome page. This doesn’t occur if I sign out, close all the windows and try to run again the same file.
Does anyone know please why does this happen? Is it normal for Apache Tomcat (I haven’t tried with any other server) or has it to do with the operating system of my laptop pc?

Thank you in advance,