POST Request API speed

Hi,

We use the Post Request node to send data and then get a response back from API. Data size can range anywhere between 50K to 1 Million. We have a i7, 64GB RAM, KNIME 5.2. However, the speed for the API returns is very low. Sometimes it can take hours to 2 days. We moved to a faster upload speed- say going up to almost 500 MBPS (upload), changed xmx to 50G and added -Dorg.knime.container.cellsinmemory=10000000 to the config file but nothing has improved the speed of API returns. Can someone please help?

Yes, we can break files and run things in parallel but we want to improve speed, either way. What should I be doing?

Can someone please help.

Ace