bitcoin payment has big fees

[Bitcoin]

bitcoin payment has big fees

I am using the bitcoin-rpc and everytime i create an invoice from a PHP script, i create a new address. All is ok, i get the money after, i have a script that checks number of confirmations, then when i try to send my money back to another wallet i see 300 400 usd in fees

bitcoin-cli sendtoaddress "MY_BIG_WALLET" 0.1 "" "" true

When i look on blockchain i see that that everything were sent from every address that i have created

ADDRESS1 ... 0.06

ADDRESS2 ... 0.03

ADDRESS2 ... 0.078

... and so on

Fees are way to big ... How can i send everything from one big address and pay only 20$ usd fee [the default bitcoin fee, i see on some services, 5 usd]?

I believe i pay per vbyte ... but i want to send internally with low or no fees or something.

How big payment gateways like coingate/coinpayments/bitpay are doing this? They too create an adress for every transaction ...

Thank you.

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