Arteta insists the Sweden striker has spent his first six months at Arsenal adjusting to the demands since his arrival from Sporting CP.
Ahead of Arsenal's trip to Everton, Arteta explained: "Everybody was so excited to bring him into the club. We did it. We brought a player with an incredible scoring record who had to adapt to the league. He had no pre-season.
"The first few weeks were difficult because physically he wasn't in his best state and he's a player that needs that, like any other player in this league, almost to perform at that level.
"Then he kicked on. I think he had a really good period and he got injured. Now he's back. I saw a lot of positive things in the last two games that he's done.
"I know we need to continue to tweak and understand him a little bit better in certain situations, and he needs to do the same. But that's about time. We have full support for him."
Asked if fans can expect an improved Gyokeres in 2026, the Gunners boss replied: "I think so, yes."