I use the previous version of NeroVision, the one that comes with Nero 6. And it does about the same. Like you, I found this irritating - until I found the work-around that's in the editor.
First, just about all editing programs have troubles 'scrubbing', that's the action of going forwards and back to get to the exact point in a film/video where an edit is desired. The reason is there's a heck of a lot of work involved decompressing and displaying the individual frames. So much so that without specially designed hardware (ie Matrox and Video Toaster), frame skipping is needed. The same principle applies to reviewing the edit, software decompression has to skip frames to keep up with the audio.
To get to a specific place on the video, use your mouse on the monitor timeline to get close, then click on the
time display, either the seconds, minutes or hours place which will turn blue and blink, then use the up/down keyboard cursor keys to move forwards/backwards one step. Use the Page Up/Down keys to move ten units. You can use the fraction of a second part to move frame by frame too.
This makes precise cuts and reviewing transitions/effects frame by frame possible.
Post Edit - The frame size of your video makes a big difference in the skipping. A 320x240 original video may not skip until a special effect or transition is put in. A 720x568 will probably skip severely, no matter what.