Cheapest way to move bitcoin in?

NexoNexo
$0.96421
‑0.99%
self.Nexo8m ago
Fee for transfer is 25£ roughly. Double that as I send a test first to be sure. That's expensive. So is 3% spread roughly. Looking to move ETH and BTC in but damn the costs mean I'd be waiting for ages to cover them with interest. What is the best way? Am I missing something..? Thanks