Actual question: what do you do when you're jungling and...
The laners just push like mad all lane phase? From what I can see, you've got 2 options. The first is to lane gank, which means sitting in a lane bush and slowly going insane as your laner refuses to let the wave push back, so you have one option. You ward the enemy jungler and try to keep track of them and countergank. This means you're spending gold on wards, probably getting less cs than the enemy jungler, and if all 3 lanes are pushed it can be hard to see where to countergank. That's assuming the enemy jungler isn't just afk farming for a Devourer.
I can't really see a good strategy for this situation, which happens all too often in soloq. I'm sure there are opportunities I don't know how to look for, but right now all I can do is just try to get dragons and sigh as the enemy Pantheon gets a free ride to Legendary.