Gundam ibo inner frame fix?

So I was recently able to get a HG Graze from Gundam Iron Blooded Orphans and I really like it!

However, I’ve heard that the inner frame for IBO kits tends to weaken and get droopy over time. I’ve heard of ways to fix it like putting glue on certain joints and mat coating it, but I’m really not sure how what to do to make sure the Graze doesn’t get bad later.

So does anyone have advice or tips on what I should do to have the inner frame maintain its stability? I Don’t really want to top coat or paint the kit, though I wouldn’t mind just top coating the inner frame if that would work?