Well lost 2-0 at Fir Park in the first leg of the third qualifying round against a Russian side who have not lost a league match since November and are three games into their season.
The likes of James McFadden and Stephen McManus are still getting up to speed after signing following Motherwell's opening pre-season games and McCall is looking for his side to hit back strongly from their European disappointment when they face Hibernian at Easter Road on Sunday.
"It always takes three, four, possibly five games before getting up to match sharpness," McCall said.
"We saw that last night because, albeit they were a very talented side, they certainly looked a yard sharper and fitter. They have been in competitive action three weeks before us.
"'Faddy' got 80 minutes and that was pleasing. Stephen McManus played his second game for us.
"I said to them last night that I didn't want any long faces. Today they were in for an extensive warm down and they were all bright and bubbly looking forward to Sunday's game."
Hibs have even more need for redemption following their Europa League campaign after losing 9-0 to Malmo on aggregate.
McCall was at Easter Road for the second leg on a spying mission but soon found himself cringing on behalf of his upcoming opponents as they fell to a 7-0 loss to the Swedes, who themselves lost 4-0 at Swansea in the first leg of their third qualifying round.
The Motherwell boss said: "I was there and I felt for everyone connected with Hibs because the crowd was the loudest I've heard it there and everyone was behind the team.
"The first 20 minutes you could never see what was coming. But Malmo broke and got a goal and after that it was a difficult night
"They will have done a lot of work since then and they have brought a couple of new faces in.
"It might be a different side we face but one that will be determined to get a good result."