I used the src from the gitlab repo to create a new build as described on the build from source wiki page.
The render times are really slow compared to the 1.2.2 version installed from the fedora rpms.
Is there something that I should do to make the source package render quicker?
time synfig -i file/Ball_boune_tutorial_Spline.sifz -o render1/ball.png
time synfig.git/_debug/build/bin/synfig -i file/Ball_boune_tutorial_Spline.sifz -o render2/ball.png