Sekai Saikyou no Doryokuka: Sainou ga (Doryoku) Datta no de Kouritsu Yoku Kikakugai no Doryoku o Shitemiru

The second half of the Japanese title 才能が【努力】だったので効率良く規格外の努力をしてみる translates to My talent was [effort], so I will try to make non-standard efforts efficiently.

Chapter titles (using Google Translate):
1: 【努力】の才能 – [Effort] Talent