RAIN INJECTOR :
I dont know the review but I have been using this injector for ages. Still UD ! Kudos to the creator !
https://www.mpgh.net/forum/showthread.php?t=1002531
What are your settings for csgo ? Please
Extreme Injector or any popular injector is not recommended at all. You could try and make your own or just use something like Randoinjector