subobject level = performance killer?

hi all,

need some help with a current script i am writing:
all the time when it comes to subobjectlevel operations i have problems with huge performance issues. i know my scripting skills are less professional but maybe someone can point me into the right direction.

here the part of my script that makes the problems:

for c in chamferObjs do (

addModifier c (Edit_Poly name:"EditPoly_customChamfer")
					
clearSelection()
select c
					
subobjectLevel = 2

objEdges = $.modifiers["EditPoly_customChamfer"].GetNumEdges() 

$.modifiers["EditPoly_customChamfer"].Select #Edge #{1..objEdges}
$.modifiers["EditPoly_customChamfer"].SetOperation #ChamferEdge
$.modifiers["EditPoly_customChamfer"].chamferEdgeAmount = chamAmount
$.modifiers["EditPoly_customChamfer"].edgeChamferSegments = chamSegs
$.modifiers["EditPoly_customChamfer"].chamferEdgeOpen = chamOpen
$.modifiers["EditPoly_customChamfer"].Commit ()

subobjectLevel = 0

) -- end for

i think the problem occurs as soon as i get into object selection mode that causes max to show what is going on and refreshing max/scene takes much longer. but without selecting each object i can not get my modifications done.

attached you find the whole script if it might help to understand what the script is used to do.

thanks in advance
-le1se