Dissolution has potential but....

Before I get into this, I will concede that it gets better late game. But that requires you to allow survivors to drop pallets all game and not destroy them, which can slow you down especially if they rarely vault over pallets- which with this perk becomes alot more common. Thi means to get value out of the perk at it's best requires you to potentially make it harder for you to navigate the map while survivors can avoid your perk due to it being shown to them.

Survivors tend to be able to make the speed boost they get from a hit a huge boon, to the extent they often don't need another pallet or vault for around 30 seconds to a minute. Meanwhile, dissolution lasts for only 20 seconds. this means unless a survivor chooses to not take advantage of their speed boost to go to a pallet and predrop it and then wait for you to chase them again to fast vault over the pallet, you don't get any value from the perk. The only situation the perk would be useful is negated by basekit mechanics, since survivors hit near a pallet will just run away because the speed boost offers more protection. Especially since the perk tells them when it is active, meaning they know not to fast vault for 20 seconds. This means that the perk can't be used because survivors can choose to not engage with the perk and will survive doing so at no cost to themselves, while you just spent a perk slot to destroy maybe one pallet every other game.

I think if dissolution worked like superior anatomy, it would be far more useful. Rather than feeling pressured to make immediate use of the perk, often in situations it isn't suited for, you could instead use it to pressure survivors to drop pallets, and take advantage of it later when others try to use dropped pallets to escape you. It becomes a thinking killer's secret weapon, allowing us to plan around their behavior and take advantage of predictable actions. Transforming this perk from a useless midchase panic button, into a killer's means to turn a survivor's salvation into a trap (as a bonus this would make perks like Zanshin tactics far more useful, allowing for even more build variety).

TLDR: if dissolution didn't have a time limit, it would allow more creative uses outside of hoping a survivor actively sabotages themselves. This would make the perk alot more fun, and more useful to people who like to plan and use survivor's actions against them.