[Maxximou5]

You're seriously overloading that server, both in processor and in memory. Your processor base frequency is 2.7GHz and maximum being 3.5GHz, CS:GO needs a minimum of 3.5GHz to run well for 128. It may be fine for your case but with overloading it, it would cause issues you are experiencing. For a CS:GO server to run optimally, you should allocate 1 core/2 threads, this is for main operations on one thread and the other for offloading logging, networking, and etc which CS:GO can do on a separate thread. Since the recent updates memory can now exceed 2GBs of RAM per server; however, you may be fine with slots below 20.