[poppler] Cairo output slower than splash output?

[GhePeU]

Hello,

Since the last weeks I've been using evince 0.3.2 and poppler 0.3.3 to
view PDF files. As my distro (Gentoo) provides an old release of cairo
(0.4.0) due to compatibility issues with other programs, I was using the
splash output, and today I decided to recompile poppler with the last
cairo snapshot (0.5.1) and the corresponding libpixman 0.1.5 and glitz
0.4.3. 
After a few seconds I noticed that cairo output is visibly slower than
splash output, with both text-only PDF and PDF with mixed images and
text. This is particularly manifest when I change page: with splash
output a new page is immediately rendered, but with cairo there is a
noticeable delay during which I see a blank page. Also, when I zoom in
cairo needs more time to render precisely the fonts.
Are this issues due to problems in my system or are they common problems
that will disappear with future optimizations?

Thank you and excuse me for my bad English

Giacomo Perale

-- 
When Adam delved and Eve span,
Who was then the gentleman?