First of all, retaining a bpm of 60 probably means its timing, one of the most important aspects of a beatmap that affects nearly everything else about it, has not been fixed.
Next, when suggesting changes, instead of submitting your proposed version as a new beatmap, post your version as an .osu file in the original beatmap's thread. Once you post it as an .osu file in Stjerna's thread please tell a BAT so they can delete this beatmap and thread.