# Low speed for image transmission using HTTP on esp **URL:** \ **Category:** General\ **Created:** [August 15, 2026, 8:51pm UTC](https://community.morsemicro.com/t/low-speed-for-image-transmission-using-http-on-esp/1940 "2026-08-15T20:51:09Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![omumbare](https://avatars.discourse-cdn.com/v4/letter/o/96bed5/32.png) [@omumbare](https://community.morsemicro.com/u/omumbare)\ **Post date:** [August 15, 2026, 8:51pm UTC](https://community.morsemicro.com/t/low-speed-for-image-transmission-using-http-on-esp/1940/1 "2026-08-15T20:51:09Z")
hi, I am using ESP P4 with OV5647 Mipi CSI, connected to FGH100MAAMD2 card using SPI in STA mode it is connected to HalowLink2 in AP mode which is connected to my home WIFI 2.4ghz. ![image](https://us1.discourse-cdn.com/flex001/uploads/morsemicro/original/1X/c478a719639d55ba716f66604fac510c5464801d.png) I am trying to upload an image (1080p) to a remote server using http client write through halow. I am able to upload the image to the server but speed is too low. around 10kbps i am using 64 tx pool queue and 64 rx pool queue. is this expected? how can i improve the speed? ---
**Author:** ![ajudge](https://avatars.discourse-cdn.com/v4/letter/a/c2a13f/32.png) [@ajudge](https://community.morsemicro.com/u/ajudge)\ **Post date:** [August 20, 2026, 4:38am UTC](https://community.morsemicro.com/t/low-speed-for-image-transmission-using-http-on-esp/1940/2 "2026-08-20T04:38:15Z")
This could be a limitation of EU duty cycling (2.8% for clients). Though I would expect more than 10kbps. That is 2.8% per hour though, so you could try to use [mmwlan\_set\_duty\_cycle\_mode](https://morsemicro.github.io/mm-iot-sdk/framework/doc/html/group __MMWLAN__ REGDB.html#ga7c1eb7c9f6f40f2aa056e6213548ec64) to change to burst mode instead. Can you try an iperf? What is your throughput there?