Thanks both of you for your intereset in my question !
I’ve tried a bit of all these things but nothing really change, until… I move from UE5 EA to UE5.0.3, there is a HUGE perf gain, the fps issue is now barely noticable without any optimization, everything works great for my current need !
I’ll certainly test deeper in the above method about displaying all text in a single widget, + maybe a pool of actor. But for the moment, everything is smooth with this UE5 update.
Thanks again ! Have a great day / evening folks !