The South African international joined the Cherries from Malmo in the summer, but has scored just once in 12 appearances for the club.
"Sometimes you can tell when you have played badly. People come to you and say you played well but I believe people need to be honest with me," he told the Daily Echo.
"It would be nice if people were honest and set the record straight so I can rectify my mistakes. That is the only way I can develop and grow as a player. I am way too strong to let it (criticism) destroy me. I don't know where I get it from but I don't get affected by anything.
"People might think I am arrogant but I don't have it in me to feel sorry or ashamed for myself when I do these things (play badly), I just always want to try to get better and better. It has been a struggle and it is strange because I didn't struggle anywhere else, things just turned out for me, but this is the first team where we have worked on different aspects of the game. It's a whole new set-up, a whole new venture but it will help me going forward."
Rantie had previously been linked with a number of Premier League clubs.