Comment 8 for bug 1491064

On 2015-09-02 11:04 (+0200), ~suv wrote:
> Tests with locally archived builds (…) within that range confirm a
> regression related to the changes in r13401

Tests had been done with default (new) prefs and the original test case.

Details:
- rev <= 13400: performance ~ok (more sluggish than with 0.48 though)
- rev >= 13401: noticeably worse performance compared to 13400