https://bugs.documentfoundation.org/show_bug.cgi?id=155410
--- Comment #21 from Roland Baudin <[email protected]> --- I did another test with another document (test_complex_graphic.odp). This one contains a big (silly) equation produced by TexMaths. With gtk3, selecting the graphic image with the mouse takes a few seconds, while it's much faster with qt5. Here are the selection times with gtk3: SAL_USE_VCLPLUGIN=grk3 /opt/libreoffice7.4/program/simpress => 1.5 s SAL_USE_VCLPLUGIN=gtk3 /opt/libreoffice7.5/program/simpress => 8 s SAL_USE_VCLPLUGIN=gtk3 /opt/libreoffice7.6/program/simpress => 8 s SAL_USE_VCLPLUGIN=gtk3 /opt/libreofficedev24.2/program/simpress => 6 s And with qt5: SAL_USE_VCLPLUGIN=qt5 /opt/libreoffice7.4/program/simpress => < 1 s SAL_USE_VCLPLUGIN=qt5 /opt/libreoffice7.5/program/simpress => < 1 s SAL_USE_VCLPLUGIN=qt5 /opt/libreoffice7.6/program/simpress => < 1 s SAL_USE_VCLPLUGIN=qt5 /opt/libreofficedev24.2/program/simpress => < 1 s So once again, we can see that gtk3 rendering is much slower than qt5 (especially in LO 7.5 and 7.6). The patch in LO dev24.2 improves things a bit, but not much. Note that in Inkscape, selecting the big graphic image is fast, so I think the problem does not come from gtk3 itself, but probably from the gtk3 rendering implemented in LibreOffice... I don't recall here the LO versions I used, they are the same as in my previous comment. -- You are receiving this mail because: You are the assignee for the bug.
