gnuplot cairo terminals extremely slow

[arbahl@…]

Since 3-4 days - after updating my port tree and ports - my gnuplot has slowed down extremely when I use cairo terminals.

if I type

set term pngcairo set output 'test.png' plot sin(x) set output

the plotting steps needs up to 20 seconds, which renders gnuplot currently unusable if you want to create a number of different plots.

Does anyone has the same problem?

I am using the later lion (10.7.3) and Xcode (4.3.2) version...

thanks for helping!