No it won't.

You have several options: heres a couple
Since its one object, I assume your using polys...

You can use isolate select: Show>isolate select>view selected
( I usually tear off that lil pane so I can toggle it )
with polygons it only works with faces. with cv's on NURBS
select some faces around the area your working ,
isolate select them
then you can change back to points or edges.

{read all about it in the help files. when you get really heavy characters it can really speed things up}

Another option: Instead of using the lasso tool,
use the Paint selection tool: Edit>paint selection tool>options

this is one of my favorites, and definitely worthy of shelf space
it's just like any artisan tool.
*a good tip is to make sure you use the hard edge brush (the 3rd one)
since components are either selected or not.
I usually uncheck rotate to stroke, and make sure toggle is off.

as with anything in Maya there are 100 ways to do stuff,
those are just a few that work good for me.
Joe