Lowering humidity

So my Suriname is settling in quite well living with me
I recently switched my bedding from news paper to Cyprus mulch and saw a massive spike
in humidity in my boaphile tank with just a little added water I am getting condition all in the tank and he humidity is reading HI
which I can figure isn't good for the snake
any tips on lowering the humidity to acceptable levels?

How is your ventilation? Either allow more air or reduce moisture in Cyprus. I typically create more ventilation than needed and cover up sections until proper levels. But my strong background is lizards, so maybe one of the snake guys has better options.

The top tank has perfect options for ventilation ( plastic pieces that slide on the side to open air vents)
the boaphile 421D none what so ever so what I been doing is moving her to her future feeding bin and keeping the front of the enclosure open

If you just need to pull moisture out quickly, and she's in another enclosure currently, you can use a silica pack in a bowl in the enclosure. I wouldn't place it directly on anything in the enclosure just to be on the safe side. It will literally suck moisture right out of the air. When you get close to where you want, just take it out and let it vent a bit more.

I'm not sure what HI means, but you do want to aim for 70-80% humidity if possible.

If it's still higher than that, I'd add less moisture in the future as mentioned. For now, you can open the enclosure for an hour or two to allow humidity to escape. If you use belly heat, I'd consider adding an RHP or CHE, it will help control your humidity (and imo is a better heat source than belly heat for boas so double win).

Cypress straight from the bag naturally has a lot of water. You can take some and spread it out to dry in a shallow baking pan for a few days before you use it, or if you need to dry it quickly you can bake it in the oven.

The great thing is the vents on the balls boaphile tank has been great at losing humidity and keeping it in the target range
The red tail one been a little tricky been leaving the front of the cage open and gonna try that package for humidity