I'm fairly new to kdenlive, and I want to export a >30min Video with several clips in it.

During preview replay it's kinda laggy when switching between those video clips (several ms before showing the next clip) and activating proxy clips does not work for me..
I could live with that issue, but the problem is, that the exported video after rendering has the same lags which is pretty annoying..

I'm using ArchLinux with KDE desktop environment and have not changed any settings in kdenlive since installation (except for proxy clips).

May one of you can help me..