@kas1e
Well in this case (i can speak only for myself as i was one of the betatester involved) i never noticied any of that slowdown you reported, except one at startup that i didn't reported to Guillaume because i was sure it was not strictly related to FlipPaper .. but instead it was ..
In partial K-L "defence" we should consider that not all system react on the same way, for example a Sam440 is and still a bit different than a Pegasos 2, infact all the other slowdown you reported in FlipPaper was not visible on my system, so maybe some not "very expert" people will never noticied such type of issues ..
Add to that you have MemGuard active everyday !
But sure i agree with you on that, some people should stop to say only "great work" and start to use their apps for real, then if they also like to report bugs it will be better for sure ..
And aniway, please calm down boyz