Varying success presenting to Australian attendees

Hello,
Zoho Show is just the most fantastic tool ever for giving average people the ability to present a visual presentation over the net without the attendee seeing the script. We love it and so does our team!
The challenge we face is that here in Australia many people have varying ISP connections. We would never try to present to someone on dial-up as that appears to be totally impossible but we have an ongoing issue where 1 in 5 presentations have to be abandoned as the attendee cannot view the slides. Sometimes they see the first slide an no more, sometimes the slides take 10-20 secs to update so our 45 min presentation would have to blow out to 2 hours. We have a team using this presentation and although it works they are getting dissillusioned when they have to cancel high quality prospect presentations.
The generic welcome presentation appears so fast but ours is photographic and each slide is about 55-60kb. Is there a way we can keep the photographic slides and make the presentation faster? Do I need to drop res on the images? Some people on 128kb broadband are unable to attend or present, what is the minimum speed req? I have been looking for answers for a few months and need to solve the issue. Even if we have a set or parameters.(ie. spedd, resolution etc.)
Thanks Andrew

Zoho Desk Resources

Desk Community Learning Series
Digest
Functions
Meetups
Kbase
Resources
Glossary
Desk Marketplace
MVP Corner
Word of the Day

Sticky Posts
Attention: Your Zoho Show community has moved to a new home.
Hello everyone, With the release of the All New Zoho Show, along with the Show apps for Mobile and TV devices, we recognized the need to move the Zoho Presentations sub-forum into a stand-alone community. This new centralized community platform will help to support various questions and information relating to this online presentation software. The new Zoho Shows community is a place for you to discuss and share anything and everything related to Zoho Show Presentations. It includes users from all
Customize the slideshow to suit your audience - Zoho Show.
Let's say you have a huge presentation to deliver to the board members of your company. And the following week you have to present portions of the whole presentation to different departments, such as sales, HR, and product heads. What do you do now? Copy-paste to create several individual presentations or delete unwanted slides from the original presentation? All of this could be laborious and time-consuming. Instead, choose to do this. Create a Custom Slideshow on Zoho Show. With the custom slideshow
New in Zoho Show: Import, render and export Charts.
Numbers and accounting data are often represented in the form of spreadsheets and tables. While this may seem detailed, it does not sit right within a presentation. Directly producing data to an audience is one thing, but how will you highlight an increase in trend or compare two different variables? Analysis is possible only when your numbers are expressed in the form of charts and graphs. With Zoho Show's latest update, all your charts and graphs are effectively reproduced. They are now shipped
The countdown begins. Free webinar - Zoho Show and Zoho ShowTime.
"Become a better Presenter with Zoho Show and Zoho ShowTime." Join us for a free webinar by our Customer Specialist Subhash on Wednesday, 27th January 2016. Zoho Show is an online authoring tool which lets you build stunning presentations, while Zoho ShowTime focuses on audience interaction, lets you showcase your skills and improve yourself as a presenter. After this session you can: Create slides online and collaborate with your team. Connect with your audience while presenting. Get your
Those spelling mistakes, never again! - Zoho Show Spell Check.
Imagine this. You are in front of an audience presenting an impressive slide deck. Suddenly, a few misspelled words appear on the screen . It's not that you don't know how to spell the word, it's that you were rushing to get your thought out. Either way, presenting those misspelled slides to your audience is a nightmare. Now, Zoho Show gives you the Auto Spell Check option. By default, the Spell Check feature checks the spelling for you; make your ideas flow without worrying about minor errors.