The problem come from the hosting server limiting memory and cpu ressources.
I need to understand how plugin like WP-DB-Backup work. It use java script to retrieve database data. It’s a long process that would timeout using my script mechanic. I’m a self learner and I didn’t get any spare time to read about this.
If you can provide a solution for this bottleneck, I would be more than happy to add it in new CJ-Datafeed update.
Thanks kasper for your time