That something is bad mobility and insane munitions requirements and slow reload. There is no reason why a slow ass TD with 8 seconds reload should bounce on a P4.
The slow reload only matters in a handful of cases. Due to the higher alpha damage, especially at vet 3, its DPM/TTK against most targets is or becomes higher than any other TD. And that's not even counting the extra damage it can get from the Tulips.