[Scribus] PS/EPS complex objects editing

[CeDeROM]

hello!

im using scribus to factorize masks of PCB that i create in eagle.
these are pretty complex vector drawings (black&white pure vector) and so
when i select such object i have to wait few good seconds for program to
finish drawing these red selection marks. then i group everything up no to
see those red marks again. and it works until i copy such object and move
pasted one - then scribus tries to draw all those "ant marks" around each
line inside of my groupped object... so i loose contact with program for
few _minutes_!

is there any other way to efectively edit such complex vector graphics as
it can be done in corel draw?
are there any options to turn off those ants or lower preview resolution
while vector editing?
i only need to multiply these imported ps/eps designs to fill A4 page...

thanks in advance!
tomek