Broadband customers are still experiencing connection speeds less than half those advertised, with the worst offenders being ‘high speed’ products, a study suggests. On average, broadband speeds were just 48 per cent of those advertised, with the figure falling to as low as 26 per cent for high speed packages offering connections of 8Mb/s or more, according to the study. By contrast, customers on 2Mb/s packages experienced average speeds of 1.8Mb – or 88 per cent of the advertised amount, according to broadband-expert.co.