I have Parallels installed on a new MacBook (OS 10.5.4, 2.4 GHz Intel Core 2 Duo, 4 GB memory). Parallels is fully updated. I am running Windows 2003 server inside the virtual machine. When typing into a document while in the virtual machine typing speed is very slow and causes numerous errors as a result (as I write software this is a major headache). The mouse is sluggish too but I can live with it. I have read the parallels FAQ and this board and have done all the recommendations that I could find. I have updated Parallels. I have installed the parallels tools, I have increased the virtual machine memory as high as it goes. Nothing works to resolve the slow keyboard response time. Any other suggestions would be gratefully accepted.
Try this 1. Set memory for Virtual Machine to less than 1 GB 2. Perform Mac and Windows side disk defragmentation http://www.xvsxp.com/system/system_tools_defrag.php 3. Set Adjust memory limit from Auto to Manual at Parallels Desktop -Preferences-Memory, and set limit a bit more higher than VM memory 4. Disable Themes in Windows XP serives.msc stop Themes service, this can be the case for w2k3 also 5. If you are running in Coherence, try to switch to Single Window, or lower Mac resolution 6. Some antivirus software can load CPU when Heuristic Prediction is set, or Tamper protection (Symantec, MacAffey), adjust settings to risk you are supposed, high security settings is not always good idea, as it can also affect software running 7. Run msconfig , and disable unneeded startup items See http://www.netsquirrel.com/msconfig/msconfig_xp.html 8. Make sure that no VNC,or remote desktop connection is established to Mac, this can slowdown Parallels Desktop 9. Optimize computer experience for best performance