There is the "Favour Boost" consumable that you can get by doing tarot mission with the minor card "Perseverance", which would give an extra 30% favour reward from warzone battle.  With it at battle level 120+ it gives a total 32 favor reward per battle.

Hi

The higher the battles, the more favors you get up to, a maximum of 25. The relics you can loot have the same power from lv 40 to lv 60. Once you have them there are no interest in continuing to farm them.I hope that neocore will finally move to solve this problem.

If you speak French and you are on ps4, I can help you.

Hi
What is the class of your character?
What level do you have?
Which weapon or spell do you use?
What rank warzone do you have?
What is your equipment level?

raise the rank warzone on lower battle.

collect and fusion relict items (it often falls in the warzone battles)

raise the level character on the tarot missions.

use improvment +50% damage to enemyes for next 5 missions.

invite another inquisitor.

i have 70 level(current maximum on ps4) and 28 rank of warzone and battle 50 for example.

i wait next rank to go further.