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Too slow to pass from one routin to the next

What are you trying to achieve?:
Below you see the picture of the experiment flow.
The ‘trial’ routine contains 100 photos that show up one after another without any ITI. The problem is that the last photo (and only the last one) stays for too long until it passes to the ‘empty’ routine. Precisely, the duration to pass from the ‘trial’ to the ‘empty’ routine takes more time at every trial (ex. after 50 trials in the first block, the transition takes 2 sec. When I pass to the second block, the transition from ‘trial’ to ‘empty’ takes 4 sec, etc…)

What did you try to make it work?:
I checked out how to preload, but I’m not sure if this is the problem (or how I would need to implement this).

I hope it’s clear what I mean but please don’t hesitate for any questions.
Thank you for your answers!

OK, so it seems that this is some sort of Rapid Serial Visual Presentation task, which causes issues for Builder because ideally to have consecutive image presentation, we would be loading the next image while the current one is being shown, as loading the file is not an instantaneous process.

So search this forum for “RSVP” and hopefully there will be some useful posts for you.