Drifting away from the "boring" slide in the conference I am not a fan of heavy/text-infested slides and hope my audience also second my opinion. I did resort to the healthy image-text ratio in most of the slides and am relying on my speaking skills during my first presentation! In this context, how should he/she adapt himself to suit the interest of audience,dynamically? If I realize that a couple of sides have turned out to be cumbersome or "boring"**, how should I seamlessly switch over to the next section and regain the lost interest.

**boring = Many example slides are available as follows :


Example 1 :Slide which talks about the approach of simulation, when actually results of the simulation are the "meat" of the talk. 
Example 2(The first few slides of the talk)

Hypothetical Talk : Thumbdrives have changed the world, Jan 2003
Motivation Slide, 1 : End of the road for Floppy Disks(3 Bullets)  
Motivation Slide, 2 : The Storage Roadmap(Image), the arise of the
PenDrive(3 Bullets)  
The News Slide,   3 : Ascend,ManDisk and Watergate 3 News Clippings + 3 Images   
The Cool Feature, 4 : Pendrives = 1K X Floppy Disks, they are Reusable CDs   
Paper Starts    , 5 : How I used the cool features efficiently to build something
even cooler?
In your talk, every slide tells a story.  That story can be as short or as long as you want.  Just like the overview slide tells the story of the whole talk in a single slide, each section of the talk and even each individual slide can be presented at multiple levels of resolution.
Familiarize yourself with the story you want to tell at these multiple different levels of resolution, and you can change the pacing to match the interest level of the audience.  

For example, let's say you've got a slide explaining the details of how you performed a simulation.  You might present this same slide at three radically different levels of detail:


High detail: explain each of the parameters and why you chose it
Low detail: "To study this in simulation, we selected these parameters.  The important choices here are ..." [explain the critical choices]
Minimalist: "We studied this in simulation using these parameters, and ..." [move on to following results slide]


If you are concerned that you are boring your audience, you can shift to a lower detail presentation without actually disrupting your narrative.
This is also a good technique for managing your time, to ensure that you don't go over-time or badly under-time, and can help you customize your material for different audiences.