Screen display is similarly impressive. Opaque-scrolling web pages in the classic version of IE5 feels just as fast as it is in native Mac OS 9. In fact, IE5 running in Classic beats the Carbonized beta of IE5 included with DP4 in almost every performance measure. But it's still an impressive showing for DP4's Classic environment. Some things have made obvious improvements.
Classic is much faster.
The genie effect is much smoother on a G3 than it was in DP3. Opaque window dragging is more or less unchanged. Opaque resizing is slightly better but still sluggish, and has been disabled in some of the apps that were very slow in DP3. Boot time is a wash. Performance sore spots remain in DP4, some of them new.