Cricket's showpiece tournament, being staged for the first time in the Caribbean, has come under fire after accusations that locals have been priced out of the event.
But Speed said this week's easing of restrictions on bringing musical instruments into the grounds and the creation of re-entry tickets proved officials were prepared to listen to concerns.
And he insisted that nations such as Antigua, where the Sir Vivian Richads Stadium has been specially built for the World Cup, would not be left with a legacy of unviable grounds.
"There have been many positives, there have been a few negatives. I would like to focus on the positives as much as possible," said Speed.
Asked if the tournament lacked a Caribbean flavour, Speed replied: "Are they here today, were they in Guyana, at the matches I was at? Were they in Kingston at the matches I was at?
"There's Caribbean flavour at this match, just go outside," he added during the innings break in the Super Eights game here Sunday between Australia and England.
"It's hard to hear your questions because there's quite a lot of noise in the background. There is a Caribbean flavour about this match," Speed said of a crowd, roughly two-thirds full in a ground holding 19,000, made up mainly of Australia and England supporters.
"But there also needs to be a world sporting event flavour about this match and we try to blend the Caribbean flavour with that."
Speed insisted that a ticket pricing policy, starting at 25 US dollars per match, was not excessive.
"The local organising committees make recommendations about ticket prices to Cricket World Cup which then seeks input from the ICC," he explained.
"Our only input at that stage was to say we believe we need to have more tickets at the bottom end of the range.
"We expect each country will know its own economy and pricing. We do exactly the same thing if we go to England.
"We don't say to Trent Bridge, you shouldn't be charging 65 pounds a head to come to a match, you should be charging 25 pounds.
"Twenty-five dollars, we are told by people in the West Indies who set these prices, is perfectly reasonable."
Although the World Cup lasts nearly two months, Speed said the global governing body was in a no-win situation.
"We are criticised sometimes because there is too much cricket and we are criticised here because some of the breaks between two matches are too long.
"The team that wins this tournament will play 11 matches in 47 days - something like a match every four days - so there are generally healthy breaks between matches."
And he insisted the likes of Antigua, where only 9,000 turned up to watch hosts West Indies play world champions Australia, wouldn't suffer financially in future years.
"If you were to go to the old ARG (Antigua Recreation Ground) here, that's a seriously difficult ground to maintain because it's falling apart," said Speed.
"What we have here is a legacy where cricket teams will come to the West Indies and play in five-star venues. That doesn't happen in many countries."