Me and my friends have the same issue with this game. This game should focus on the optimization with lower and high end PC's. If they can get the optimization perfect for everyone. Everyone would be happy. Honestly, I'm a huge Insurgency fan and always will be even tho I'm some what bad at the game.
I have a pretty beast PC but some of my friends do not have the best PC. I have played on their PC's and I see when they find a match. They have a tough time loading in the match and usually when they load into the match. The round had started and they can not be deployed. Also for the lower end PC's please optimize it so they can get better frames cause the game is great, just need some touches it can get better. Not everyone has a great PC that can play this game. Fix these issues and the game can be great.