Vai depender muito do contexto.
Essa pergunta, já feita aqui
, talvez tenha pelo menos parte da resposta de que precisa.
Não esquecer "to optimize".
João found time and occasion to optimize all of his computer programs.
He also optimized his website.
João's grasp of the visual enhances both his projects and this website.
João says he's improved the accessibility of his website.
José, João's younger brother, welcomes the EE language forum's members to his new and improved (or enhanced) website!