Slow Mappaint style in JOSM

[speedbiker]

Unfortunenatly I've detected a problem using JOSM. Therefore I opened an issue in JOSM's-ticket system.
User GerdP told me, that not JOSM itself is the problem, but the Mappaint-style.
Basicly: JOSM become working slowly, while drawing new lines. The delay from point to point become larger the longer I work with JOSM.