ROG phone 2 - Dual 4G speed issue - Airtel/Jio

[ZT-f64ab781]

Model Name: ROG phone 2(8/128 indian version)
Firmware Version: WW_17.0240.2105.90_0
Rooted or not: not rooted
Frequency of Occurrence: every time
Hi Asus team,
I am using Airtel as my primary sim(slot1) and Jio as secondary.
1- When both sim cards are using 4g VoLTE network and mobile internet enabled on Airtel sim.
I very get low speed.
2- when Jio sim is disabled from network sim menu. Airtel mobile internet speed goes up instantly. In my case around 20-30 Mbps.
3- after enabling Jio sim again from menu, speed comes down by 50% or more and within few mins goes back to 1st case.
PFA screenshots.
Can anyone from Asus team check and confirm this?
Is it a hardware issue?
Can other ROG users check and confirm as well?

[ZT-f64ab781]

Screenshots of the mentioned scenarios.

[ZT-f64ab781]

@Titan_ASUS please help

[Gustav_ASUS]

@ZT-f64ab781 I've asked my colleague to try and replicate this issue, hang tight. 👍️

[ARP_ASUS]

Hi ZT-f64ab781,
Below is my test results.
Speed test 1 - Airtel Data. Jio Disabled test 1- 13.47MBPS,test 2 - 9.86,test 3 - 17.26,test 4 - 12.4,test 5 - 8.75
Speed test 2 - Airtel Data. Jio Enabled test 1 -4.61, test 2 - 6.6mbps, test 3 - 9.78,test 4 - 12.97,test 5 - 8.31
Can you try and share multiple test results similarly