Did a test this morning, configured wifi as wan and connected as station to my cell phone.
Than did an internet test:
1 connected to the router with my pc with cable i get max 6mbit in download and around 400kbit in upload (ookla test).
2 connected directly to the cell phone with my pc trough wifi (same phone that gives internet to the router) i get 40mbit in download and 400kbit in upload(ookla test).
During the entire test the cell phone was never moved and had 4G+ stable connection troughout all test.
So it is the hardware of the router that is extremely slow, not the modem itself (not using the modem in my test). Is there anything that can be done to speed up the router a bit? As it is now, it is painfully slow, i have never seen anything above 6mbit in download, no matter what type of wan connection the router uses.