Multiplayer 3v3 & 4v4 lag

I have a decent internet connection, I play many games online with no issues. My Pc has 16gb RAM, i5 9400F and a GTX 1660 TI. In team games there are times where the game is almost unplayable because of lag. Other times it is fine. Sometimes the game crashes or disconnects. Maybe the servers get full and struggle to handle the load.

My question is:

  • Who else is experiencing lag in team games ?
  • Why does the frame rate drop if there is lag ? (the frame rate goes to 1 then back up to 100)

If there are so many problems at least give us the option to hot join.
The multiplayer does not feel like what was promised.