After last update : site very very long and error 504 :-/

That sounds bad. The new Freemius integration isn’t supposed to have a significant impact on site performance.

Did any new errors show up in the error log after you updated the plugin? In particular, I would recommend looking for errors like “maximum execution time of X seconds exceeded” or “memory limit exceeded”. Even if an error doesn’t mention this plugin by name, it could still be related to the timeout.

Finally, the usage analytics are opt-in. You can skip the opt-in screen and the plugin will still work just like it normally would. You don’t need to provide any personal data.

Thanks for your answer.

It’s too late for me : I have re-installed the previous version (v1.5.7)…

and of course, I skipped the recording screen.
I hate this way of overloading the code with features that have no interest for me and are unrelated to what is expected of a plugin…

Unfortunately, you’re not the only one doing this, more and more plugins are doing the same thing.
In the end, our sites spend their time emitting data to each developer ??

All right, thank you for the feedback.

If at some point you decide to switch to 1.6 or a later version and it still causes errors, please let me know. I would like to find a way to fix that problem.

Yes of course.
Your plugin is useful.
I will try the next version as soon as it becomes available.

Regards.