Continuous packet loss/lag issues.

​ Loutall1​  the screenshot you posted shows an average of 37fps. That's why everything is so laggy. The CPU is maxed out for some reason.

The 3 yellow stacked rectangles in the top left corner of the screen indicate the frame rate is below 60 frames per second. 

Client frame time (CFT) is 27ms which means the PC's framerate is 37fps.

1,000ms ÷ 27ms = 37fps

There's 1,000ms in one second. The PC is outputting a new frame every 27ms 

Most likely the CPU is hitting 100% usage on one of the cores. Here's some troubleshooting steps to verify if this is indeed what's happening.

To check if there are any CPU cores hitting 100% usage, open the Windows Task Manager CPU graph.

• Run the game in windowed mode (alt + enter)
• Open Task Manager (alt + ctrl + del)
• Open the Performance tab, then right-click on the CPU graph and choose "Change graph to > Logical processors".
• Set Task Manager to 'always on top' by clicking option
   
  Now you can play the game and monitor per core CPU usage. If any CPU core hits 100% usage the game will stutter and cause network lag.

Battlefield 6 is designed to run at 60fps or higher. If the fps drops below 60 then time nudge (TN) will spike up high.

The next step is figuring out what's causing the CPU to max out.

If the CPU is above recommended system requirements but still has CPU cores hitting 100% usage.

Then possible reasons include:

• CPU frequency downclocking due to the CPU or motherboard voltage regulator module (VRM) overheating.
• RAM in single channel mode, instead of dual channel mode.

Monitor CPU frequency in Windows Task Manager to see if it downclocks. For example going from 4GHz down to 3Ghz.

Download HWiNFO to see if the CPU or VRM is overheating and causing the CPU frequency to downclock.

The CPU shouldn't be above 80°C and the VRM shouldn't be above 90°C.

https://www.hwinfo.com/

Download CPU-Z to see if RAM memory is in dual channel or single channel mode. Dual channel has more performance.

https://www.cpuid.com/softwares/cpu-z.html

Yep everything is fine on my end but PL up. 

This exact thing is happening to me too. I believe it is spikes in what is called TN Latency (Time-Nudge Latency). Is your TN Latencyhigh when you experience this?

You can turn the little panel at the top on in the system > Network settings and see.

No fix yet, but game is unplayable. 

I never had this issue in Beta, but now BF6 is unplayable - hoping they will patch and fix soon.

I noticed putting a threshhold of 60FPS resolves it slightly but still unplayable.

Back to single player or 2042 until they patch...

Yeah this is brutal. Thanks for adding 

i feel you, i have a powerful pc with fibre connection and official servers are unplayable. I should not have to put everything on low. 

as a workaround, i can join user games in North america and it seem fine. but any official server.... nope