The survey, Engaging the tablet user: What they expect from websites, sampled 2033 respondents. A third of them revealed they will not make purchases online from businesses that do not meet their Web expectations.

Four out of 10 experienced a problem when accessing websites. Among those, two-thirds reported slow load times, and more than 40 per cent experienced website crashes or problems with website functions.

Compuware said tablet users expect websites and transactions to work flawlessly as their expectations have been shaped by years of using powerful PCs to access fast websites delivered by Internet leaders.

The survey showed that users expect tablets to perform as fast, or faster, than on a desktop or laptop computer at home.

"Based on the survey results, companies are not meeting tablet users' Web experience expectations. Tablet users represent a coveted audience that in general tends to spend more per order, so organisations that ignore tablet users do so at their own peril," Compuware APM chief technology officer, Steve Tack, said.