Using module multiprocessing or threading? I was taking that option into consideration. Just wanted to see if someone had encountered something similar somewhere.

Use multiprocessing

Use read not browse, better performance, browse read all field from table, read take only asked field, so better performance.

ids = self.search(cr, uid, [('state', '=', 'open')])
for asset in self.read(cr, uid, ids,['depreciation_line_ids']):
            for asset_line in self.pool.get('account.asset.depreciation.line').read(cr, uid, asset['depreciation_line_ids'],['move_check']):
                if asset_line['move_check']:

Yeah, i am thinking that this is the next natural step, i already got it working with browse, but stil performance is slow and resource consumption high. I have really never used read before, i am going to have to rewrite my entire algorithm.