Can you check that you are not building with assert? Usually cmake should use RelWithDebug or something like this to have debbugging symbols but without assert that will dramatically slow down production build. It means building with -DNDEBUG or équivalent. Thx for checking. Le lun. 6 mai 2019 22:24, Michael Cronenworth <mooninite(a)rpmfusion.org&gt; a écrit :