Slow typing does not imply a keylogger. The concept of a keylogger is to go undetected.
You may not have enough RAM with all the apps your running.
If your RAM or CPU, video card memory is not sufficient to handle the tasks your dumping on it then you will see lagging, thats latency. Latency is a delay generally in milliseconds of your signal from any hardware device to another. example, Hard Drive to sound card keyboard.