England wrap up their autumn campaign against a financially stricken Samoa, whose union has declared itself bankrupt, and are the weakest opposition Jones' men will have faced in this campaign.
However the head coach, who will be missing Sam Underhill with concussion, says they will be taking nothing for granted when they run out on to the pitch.
"Traditionally Samoans have always wanted to hit hard," Jones said. "They'll be disappointed with their performance against Romania (17-13 defeat in Bucharest on Saturday) but we know when they play at Twickenham they get excited and we anticipate we'll have an exciting team on Saturday.
"We need to be right on the job and we emphasised that in our short team meeting (on Monday). We've got to be better than we were last week.
"I don't know where they've got those genes from, but just look around the world at how many good Samoan players there are. It's quite freakish that Samoa and Tonga produce so many good players."