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I've been using xterm for a while and recently I decided to switch to urxvt because of problems I'm having configuring fonts for xterm. URxvt solves almost everything, the only issue is that I noticed when I use the file manager that I'm currently programming, there is some severe flickering whenever the screen redraws. I also noticed that when I scroll in ranger, the scroll speed is considerably slower than in xterm, although there is no flicker. I tried switching TERM to screen-256color and rxvt-unicode-256color, but there has been no effect. It's possible that my code is inefficient, but I don't think it's so inefficient that the problem should be this bad.
This is my code if you want to check it, although I should warn that it is extremely messy and incomplete: https://github.com/DestructiveReasoning/Profiler
I really don't think it's the code though, because it works very smoothly in xterm, sakura, and termite.
This is a video I took comparing the performance of urxvt and xterm
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