cron.php - What does it do on page load?

[kh99]

No, you don't want to delete it, some things won't work right if you do. The scheduled tasks do run on the server, but vb has no way to force anything to run except when a page request comes in (in theory you could use a cron job or equivalent, but it's not set up that way by default).

I'm not an expert on analyzing page load times, but like I mentioned above, it might show up on a graph as something taking a long time, but it shouldn't look that way to the user because they won't notice if it's done or not. But also, it doesn't seem like it should take 400ms every time. Did you run more than one test and see that every time?