Comment # 1 on bug 1222533 from Martin Wilck

Created attachment 874157 [details]
perf data for opening the file with flatpak soffice

   1.92%  soffice.bin      libuno_cppu.so.3                [.]
typelib_typedescriptionreference_equals                                 
   1.16%  soffice.bin      libgobject-2.0.so.0.7600.6      [.]
g_type_check_instance_is_a                                              
   0.96%  soffice.bin      libuno_sal.so.3                 [.]
rtl_uString_release                                                     
   0.79%  soffice.bin      libuno_cppu.so.3                [.]
typelib_static_type_getByTypeClass                                      
   0.67%  soffice.bin      libuno_cppuhelpergcc3.so.3      [.]
cppu::OWeakObject::release()                                            
   0.66%  soffice.bin      libuno_cppuhelpergcc3.so.3      [.]
cppu::OWeakObject::acquire()                                            

None of the functions taking most CPU time in the native package show up here.