She can't change how the map's played on attack and be a viable anchor on defense as well, so I think they should reduce her Molly count to 1(and in return make that 1 Molly actually able to kill people w heavy shields as it only does ~136dmg).
Also imo give her a max fuel so she can't just have infinite vision denial w a wall that can cut 3 different angles at once. I would say a total fuel amount of 45-60 sec(can only stay up for a max of 15sec at a time) but I'd rather the devs figure the perfect number. Definitely don't reduce the current fuel's recharge rate, it's fine as it is.
It's not a map pool problem she is just innately too strong, I say this as a viper main. I just pray pray and pray they don't butcher her like they did chamber