strange issue, worst network speed and worst ping latency on linux

I cannot explain this, I will start by listing these speed test results this one is the linux host running mxlinux latest version this one is the windows 10 running inside vmware **on the same computer** I'm trying to figure out why it's THAT bad on linux I have tried the web interface, I'm getting the same kind of result every single time I have tried different distribution (live usb) same thing I have tried different browser, again same thing I don't think it should matter but just in case; I have a gigabyte x570 aorus pro with amd 3900x, 32 gig ram and linux is installed on an nvme I wonder if it's something on my side or speedtest is that bad with linux or auto tunning of sysctl with tcp is the cause or some weird/obscure setting with the kernel. I don't know if it matter too, my router is a mikrotik hap ac2, the same cable is used on the linux host and the windows 10 vm I'm open to any suggestion, tweak, etc. it's really bad for no reason. **edit 1** I forgot to add that from my router with what is called btest, I was able to get the same speed and even faster than on windows 10 with a public server I have a NAS connected to the same router, I ran iperf and I'm getting my full 1gb speed between linux and my NAS **Edit 2** **Edit 3** I think I found the culprit. with mikrotik router, there is a packet sniffer that show a lot of information and one of them is which cpu is used. the mikrotik that I have got 4 cpu under windows, it use multiple cpu while under linux it use only one cpu during the speedtest something under linux is making it use only one cpu **Edit 4** look like I need to upgrade the firmware of my router to the latest version 7.x I am using latest version of 6.x and they added a feature in 7.x where I can lower cpu usage while using vlan. I quickly tested and it look like it solve my issue, getting same speed under linux as windows screenshot and more, I will look at this more this weekend because I tested with a bare bone configuration, not my real one. **Edit 5** so it look like I had to upgrade to latest version 7.x to be able to get the maximum speed under linux... **Edit 6** I had to use the new feature fast track that work with vlan-filtering since 7.2