I don't think those settings would matter.
I am not suffering from low fps. Just stuttering every few seconds (i.e 'hitching'). I'm running only 400 troop battle size too.
I cannot truly narrow down what causes the stuttering. Some people have issues, others do not. I originally thought it was a VRAM issue, then a RAM allocation issue, and I then I thought the stutter was a result of Warband only utilising one core in most cases. It might not be any of those, who knows...
Anyway, I am running AD 1257. It does have a lot more troop, map, and armour varieties, so that could also be a factor. Despite this, custom battles with 200 troops each do not have any stuttering, which is odd.
I would definitely like a solution. I have tried most commonly recommended 'fixes', to no avail. I even made a batch file to force Warband to use multithreading. It did not really do much.
Are there any stutter patches or .ini edits that alleviate my problem? Might just be wishful thinking, but Fallout: New Vegas had a very successful stutter patch and I'm wondering if Warband has anything like it as well.
Is there anything more obscure that I can try? Some people have luck with high troop sizes, even in non-Native modules, so I know a near-stutterless experience is attainable.