Why Venom needs to be more like Riot

After Venom came out in theaters on October 5th, 2018. The villian in the movie was a symbiote called Riot. Riot's plan was to bring more Symbiotes to Earth. After Eddie (Tom Harding) and Venom stop Riot's plan and killing him off. After i saw Venom, There was a question stuck in my head a long time. The question was "Why Can't Venom be more like Riot?" During the battle of Venom vs Riot, Riot was able to change his arm or hand into weapons while Venom was punching and ripping him apart. I don't dislike the movie, I love it. It's my third favorite movie but it would of been better if Venom can do what Riot can do. What do you guys think of this? Do you agree or not? Comment down below. This is DarthRaptor97 signing off.