I think the AIM jammer idea is a good idea tbh.
AIM is the energy emitted by the user itself. So even if you have the calculation abilities or highly intelligent but you don't have enough energy, or your body don't have the dexterity to control it, you'll stay at low level.
For example, Accelerator, Misaka have both the energy field and the intellectual to perform crazy tasks, where Uiharu and Kuriba Ryouko have the calculation ability but don't have enough energy and physical control of their body so they stayed at low levels.
We already have a few arcs that basically the villain outsource the AIM from living human ( level upper) especially when Kirara Gensei obtained Multi Skills without such problem ( While generally researchers are most likely non-esper ). Then why should it be a surprise that Uiharu is using machine to generate and operate her own AIM and Personal Reality?