FCK host the first-leg of their Champions League round 16 tie on Tuesday, with the two clubs having met two years ago in the group stage. FCK drew 0-0 at home before being hammered 5-0 away.
Jelert told Bold: "Yes, I think so. We are better now.
"Without saying anything bad about our squad then, it is better now. We've also went further than we did last time, so I think we are.
"We have been stronger this Champions League campaign."