mart added a comment.
one thing that may be tried is to use input handlers instead of the mousearea to manage the wheel (tough i am not sure we can already use them in frameworks due to qt version requirements) REPOSITORY R858 Qt Quick Controls 2: Desktop Style REVISION DETAIL https://phabricator.kde.org/D24879 To: broulik, #plasma, mart Cc: apol, plasma-devel, LeGast00n, The-Feren-OS-Dev, jraleigh, fbampaloukas, GB_2, ragreen, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, ahiemstra, mart