Vb6.0 project is not responding

[dimbil]

When I run the exe file, sometimes it is running and sometimes responds with a delay, not immediately.
When I run it by F5, I have to try it many times to make it run and most of the times it is running with delays.
When it is not running, I have to end it using the task manager, which sometimes responds with a delay, not immediately.
The project was working before but when I added code for creating an xml file and sending it to an API server, then it started creating problems.
I am using vb6.0 under Windows 10
Any ideas to solve this problem?

[Niya]

I don't know many people here with a working crystal ball and I loaned my crystal ball out to a friend. This friend of mine hasn't brought it back yet! Don't you hate it when friends borrow things and don't return it

So for the time being, we going to have to settle for being told what the first thing your program does is. What is it doing in Form_Load or Sub Main(). Most slow start problems occur there.

[DataMiser]

Sounds like you have some sort of long running blocking code in there at start up. A loop would be the first guess but need to see some code to really have much of an idea.

[dilettante]

My guess is that HTTP requests are being made synchronously.