kung ang nasa picture, bakit upload lang andun. asan ang download speed. to configure QoS properly you also need to specify the download speed with which the QoS feature will be working with, otherwise, it will only work with the uploads with the current setup (which hindi naman siguro grabe ang uploaded traffic mo unless merong nag upload ng youtube or seed ng torrent)
also i cant really check the specifics on your router since you did not give the full model name
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DIR-100 ba model nito? i just checked hanggang upload lang talaga ang option ng QoS niya. if your purpose for enabling QoS is for streaming then ok siya, pero kung ang purpose mo is to control the allocated download bandwidth na pwedeng gamitin ng bawat PC, then no effect ang QoS ng router na to.