A Blitz filter might also include consideration of movement speed differences if the RQs spawn rate is high enough. Again probably sometime users should be able to fine tune by opting in or out (desire to being depending on time of day etc)
Could also include new filter for RQ with intent to (1) Blitz (2) Normal (3) Lolligag - where Blitz will never be with Lolligag and normally will be with Blitz only - unless they subselect to group with normal if blitz only group cannot be filled within x minutes.
Easy answer -- place all loot in treasure chest at end of game (basically auto pickup) -- even random drops. Autoroll whose chest it goes in. This will stop all pauses to collect loot drops and manage inventory until the quest is done. Yet no looting opportunity will be missed. Of course skill check looting would need to…