Interesting that an Anroid device considerably less powerful than the N4 would perform better. The Galaxy Nexus is actually a closer hardware comparison to my iPad Touch than the N4.
I just ran the same test using Firefox on the N4, and still the slower scrolling and blanking out screen. The scroll indicator, while still tiny, is at least in the realm of visible.
This isn't just a issue exclusive to Chrome on the N4.
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Wow! Less than 5 seconds! Almost sounds too good to be true.
I'm gonna download Dolphin right now.
Edit:It's downloaded. Scrolls fast when the txtl is far, far too tiny to read. Readable text is much slower with blanking out and breaking up glitchiness.
Try the gestures.