Takes so long to specify vacation length

When I select go on vacation, I have to wait a long time before it lets me specify the length of the vacation. Why does this take so long? It seems like it should be a simple matter to pop the options up. No calculations or what not.

Any explanation to help me tolerate it? I'm doing Dafuge's challenge and reloading and going on a one day vacation many times.

If you click the right date that you want to return (for short term holidays) on the top bar, and then select 'Go on Holiday' it automatically goes to that date

Thanks for that tip. That makes it just a bit faster. But still takes closer to a minute to get to the point where it's actually on vacation. I wonder if there's something wrong with my install or my system incompatibility.