What's the gas price of the old tx? What's the gas price of the new tx?

I'm increasing the gas by 20%

Then it's either a bug in the lib or you made a mistake when typing the attribute name for the nonce or the gas price (causing it to be auto-determined) or you're too slow when replacing it

How can I speed up this code?

Why are you dividing by that huge number? How about you just don't do that?

I try to calculate how much maximum balance I can withdraw with such gas

I don't think it takes a lot of time

Yeah but it messes your new gas value up

It then is so low that anyone will reject it

Why?

You take a value. Idk how it's scaled. But then you multiply it with 1.2 and divide it by a big number. It's now tiny

Here, print gasPrice

Wait, you fucked it up by 1e-9 and now you're "correcting" it by a factor of 1e18?

You're probably out of funds at that point or making a miner very happy

Bc your tx is going to pay as much as a literal billion txs

I can show the transactions that were obtained with the given code

This

That library is using a string

Bc JS numbers are not mighty enough

But what you get from a HTML Element is a string already

You cannot express big integers as js numbers