Thank you, Brigitte, for answering!
However, it did not solve my issue. My fault: I was definitely not clear enough. I have the following usage scenario and problem.
In a program other than TheBrain, for example it could be MS OneNote, I include the Thought URL of a specific thought in a specific brain.
TheBrain is running with this specific brain open, in the background. Now, if I click the link of the URL, e.g. in OneNote, following happens: Another instance of TheBrain is launched, taking a lot of time, until it realizes that the brain in question is already open. Then it closes, and the specific thought in the specific brain that was already open to begin gets activated, as is my intention (TheBrain is not brought to the foreground though).
The problem is, that this additional launching and closing of TheBrain unnecessarily takes a lot of time (7 seconds), even though it could/should be instant. I am using TheBrain 7, maybe in 8 this problem does not arise...
Maybe there is a solution?