Version: 4.5 pre (using KDE 4.4.95) OS: Linux Entering text in the composer used a lot of cpu cycles. Reproducible: Always Steps to Reproduce: 1. start 'top' to monitor cpu usage 2. start a new email. 3. press and hold a key while observing the cpu usage. Actual Results: Xpu usage for Xorg and kontact rises sky high. Expected Results: Cpu usage should be low. Xorg is the major cpu hog folowed by kontact. On my dual-core system Xorg uses around 80% and kontact uses around 40%
Fixed in 4.5.0 apparently.