There was a word поточный in the past (поточное производство, поточная линия): see slovari.yandex.ru. And there was no word потоковый, it is a neologism, but quite popular.

I would force using older form, but it's up to you.

There was a word поточный in the past (поточное производство, поточная линия): see slovari.yandex.ru. And there was no word потоковый, it is a neologism, but quite popular. See this distribution from RusCorpora.

I would force using older form, but it's up to you.