Despite holding the advantage at the top of the standings, the Milton Keynes-based outfit have been far from their best in recent months, having been put under increasing pressure from the likes of McLaren and Mercedes.
Three-time drivers' champion Max Verstappen remains on course to add another title to his collection, but he has failed to win any of his previous four races having clinched victory in seven of the opening ten grands prix.
Though his drop in performance presents a cause for concern, his team-mate's struggles have been catastrophic in comparison.
Problems mounting for Perez
Since signing a new deal with the team in June, Perez has collected just 24 points from five outings, sparking speculation that he could soon lose his seat.
Former racer Johnny Herbert believes that Perez appears 'broken' given his latest result in Belgium, where he dropped from P2 to P7 on what was another miserable afternoon for the veteran driver.
Speaking to TopOffShoreSportsBooks.com, the three-time race winner said: "Sergio Perez was the worst performing driver at the weekend again.
"He went from the front row backwards and that is not what teams are expecting from their drivers.
"It is horrible to say but it is like he is damaged goods at the moment - he is a broken man mentally.
"There will normally be a performance clause within any contract and that could allow Red Bull to terminate Perez’s contract because his performances have not been good enough for the last couple of years."