Which of these filetypes affect performance? I only want cosmetic changes

[StrikeEagle]

Some skins I download contain more than the two livery_main texture files.

Which of these do I want to avoid if I do not want performance changes?


"balanced" folder (contains CTF files so I guess I avoid?)
"livery_00" folder
"livery_01" folder
"track" folder (contains CTF files so I guess I avoid?)
cameras.xml
materials.xml

and the following (in the case of Toro Rosso files):
tr1.ctf
tr1.nd2
tr1_anim_dummies.pssg
tr1_AO.pssg
tr1_highLOD.pssg
tr1_livery.pssg
tr1_lowLOD.pssg


My guess would be to avoid all CTF files, and replace as much of everything else as possible, but I do not know.

Thanks in advance!

 

[StrikeEagle]

Also Interiors folders - are these files purely cosmetic?