Lets say the German disdain the whole concept raiding of bulk British commerce as being pointless (mere pinpricks of the British commerce, hurts neutral relations). So no random laying of mines in the sea lanes, no submarine war against merchant shipping. Even commerce raiding cruises like OTL Emden aren't done.
The British used the excuse of the Meteor laying mines in international seaways to add food to the contraband list in November 1914. If the Germans were able to import food, even for a few months longer it would do Germany far good than anything she did raiding British commerce. (i.e. the commerce war completely backfired).
With Tirpitz being the Mahan disciple this is not far fetched concept as an alternate time line. The Germans just need to stay true to this concept.
Practically in this TL the German cruisers caught on the high seas try to defend the colonies against attack (East Asia squadron defends Rabaul, along with a not detached Emden).
SMS Konigsburg was kind of doing that already. As well as Goeben (attempting to attack troop laden vessels is still a go).
Priorities for German navy would be.
a) Preserving strength for end of war scenarios, where a strong German Navy would be useful if France was defeated and better bases were available.
b) Protecting commerce in the Baltic (and anywhere else possible) and supporting the army there.
c) If German Navy needs to be occupied with some activity, some operation against the 10th cruiser squadron implementing the British blockade would be in order.
What would be the results of such a philosophy?