You could probably benefit from more good trades. But in the anti-cheat display anyone sending you more than 10-20% of no image, no cookie, proxy, or filtered should be watched carefully if they are sending a decent amount of INs and generating that. Especially the ones over 30% and near the top based on clicks.
You might consider sending no image to galleries only (so your trades don't get it) and in specialized out settings set it so that credit is not given for trades sending no image (and you'll probably want to not count it for no image outgoing too but that's up to you). But it takes experimentation because sometimes cleaning your traffic and settings only results in a decline. But you don't have much to lose anyway since you are oversending so much and your trades seem to be getting the better end of the deal.