Disable price change for shipping

Hi, how do I disable price change?

A third-party resource sends me the shipping price.

2021-10-03T14:32:50+00:00 INFO Ответ на запрос тарифа [Экспресс доставка до постамата СДЭК]
2021-10-03T14:32:50+00:00 INFO Сервер СДЭК вернул результат: Array
(
[price] => 1485.54
[deliveryPeriodMin] => 3
[deliveryPeriodMax] => 4
[deliveryDateMin] => 2021-10-06
[deliveryDateMax] => 2021-10-07
….0
)

This price does not need to be corrected. But the plugin recalculates it at the rate of 28.92 and gives out 42969 in the shipping cost.