Once I was traveling with other Internet Security's in recent years, I am due to worsening performance slumps my PC through the "K" Internet security software come to G Data and can only confirm what is written in the network, the system resources are virtually no decreases in everyday life, the Hourly virus definition updates do not fall on continue. The Internet pages are loaded quickly and the program may not annoying with constant security issues or erroneous closures (despite well-adjusted Firewall) of pages that you then have to manually unlock. In normal daily PC use, I also noticed a small increase in speed, everything Launched quickly as programs and web pages, image editing programs, etc. also in the processing of data sets which are thereby pushed or used on the computer by calculations back and forth (Lightroom, PHP, music editing ) it was a little faster now.
Only the full virus search may take, the first scan took me with about 230GB data more than 4 hours after going to the new virus scan more quickly but this, of course, also depends on the power of the computer.
With regard to the detection rates of viruses so is in test reports (as of summer 2010) the 2 virus Enginen uses the program to hear nothing but praise.
I can only commend this software issue and priced for 3 PC and 25 months of updates, Made in Germany .... what more could you want.