[TYPO3-english] tt_news slow on the backend

[Ahmed Moosavi]

r.mesbah at gmail.com wrote:
> Hello ,
> I've imported three fields of a Joomla database to the typo3 tt_news 
> tables through mysql queries . The imported record count is about 20'000 
> but when I try to list these new tt_news records on the typo3 backend I 
> should stay for about 15 seconds for 100 items of these . Can anyone 
> help me what can be the problem ?
> 
> Best Regards
> Ahmad