This Problems are not caused by anything on my Computer or my Browser.
I have checked it with 2 other Games and they run perfect without any lag.
I cleaned my Harddisc with CCleaner, I scanned my whole Computer for Malware, Trojans, Viruses and my Computer is super clean. There is not a single thing to remove, my Harddrive has 800+ GB free Space. My Browser never saves anything, the moment I close it all Pages I visited gets removed, same for all Cookies. I have tested my Internet Speed and it is perfect. Like I wrote, it is not a problem caused by my Computer, Internet. It is a problem caused by the last Patch.