Bottoms out

Hey everyone!

I’ve been taking my Grom off-road more often, but the front end is way too soft. I weigh around 100kg (220lbs) and the stock fork bottoms out way too easily on bumps and light jumps. Since I’m on a tight budget, I want to do just another fork oil maybe? I've read about slightly overfilling - does that make sense?

Thx for ur help! :D