SXT LTE R high ping (unstable network)

RouterOS Beginner Basics
1

Hello.

Recently I purchased SXT R - https://mikrotik.com/product/sxt_r this product.
Besides my current issue everything was easy to setup and use.

Issue: Using SXT R I do get high ping/ms when it comes to video games.
I would accept the fact that it is due the mobile broadband nature but I have measured multiple tests that caused me to make this post.

Test cases:

Test 1 (using BITE Latvia network & their provided router)
Router usage - indoor
Speed: 25/25 up/down
Ping: speedtestnet: 20ms, in-game 50-55ms
Band used: unknown

Test 2 (using Tele2 Latvia network & BITE provided router)
Router usage - indoor
Speed: 35/35 up/down
Ping: speedtestnet: 23ms, in-game: 52-60ms
Band used: unknown

Test 3 (using Bite Latvia network & MIKROTIK SXT R)
Router usage - on the roof
Speed: 30/30
Ping: speedtest: 22ms, in-game 70-80ms
Band: 3

Test 3 (using Tele2 Latvia network & MIKROTIK SXT R)
Router usage - on the roof
Speed: 70/30
Ping: speedtest: 22ms, in-game 72-85ms
Band: 3, 20 (20Ghz Band sometimes is unstable and disconnects)

Router used for indoor is Huawei.
RouterOS version: v6.47 (stable)

Please note that the issue is using SXT R on the roof with the same sim cards, pointed towards the closest cell tower that is within 3km range.

It does increase speed very much when I use the SXT R but the trade off here is that my in-game ping in video games just increases by 20-30ms which in this case is a lot.

My question would be - What could I do better? I tried to turn it against different cell tower but it did not change things much.

Here is the screenshot of my current numbers with SXT R using Tele2 network. https://prnt.sc/tf9c9p
Speedtest for this gives out 70/30 (sometimes I can even get 90/30)

The secondary issue with this is that there are packet loss sometimes and the network seems unstable but I guess that would be on the network provider side.

I am not sure what casues this and WHY it is that indoor router can provide me better and more stable network against the SXT R.

P.S. I measured and got the same results without router (using LAN cable directly to my PC).
Any ideas?

2

Check separate the band 20, 3, 7.
The 3 and 7 should be the best and agregation with then should be a win-win situation.

3

Forced 3 and 20 bands, there were no band 7 for the provider (Tele2 Latvia) I used near me.
Nothing changed. Even if the signal is “the problem”, then why indoor router is just better than an outdoor version? I turned it around like 20+ times and this was the best signal place I got.