The Blues entered the November international break following a disappointing 1-0 defeat against Sunderland, with a first-half penalty deciding Sunday's contest at the Stadium of Light.
It was an unfortunate way to end a period that had included several encouraging results, but Alonso believes Chelsea must find a way to maintain their best performances more regularly if they are to fulfil their ambitions this season.
The defeat also repeated a pattern from the previous international window, when Chelsea suffered a loss against Brentford in their final match before the break in September.
Since then, the results have been mixed. Victories against Bournemouth, Everton and Manchester United demonstrated the team's potential, with the wins against Bournemouth and Everton also helping Chelsea secure their first two Premier League clean sheets of the campaign.
However, those performances were offset by elimination from the Carabao Cup following a penalty shoot-out defeat against Liverpool, as well as league losses against Tottenham Hotspur and Sunderland.
Alonso acknowledged that the overall record could have been better and wants his players to use the latest international break to address the shortcomings.
“Three wins, two defeats, it could have been better,” reflected Alonso. “It's progress, but we want to be more consistent.
“It was about finishing this block with a good feeling but, like the last block against Brentford, we lost.
“For sure, it's ups and downs, and we are still missing that consistency that is needed in the Premier League.”
The Chelsea manager is particularly conscious that the team cannot afford to produce strong performances in isolated matches and then struggle to maintain those standards in subsequent fixtures.
Their victory over Manchester United was an encouraging demonstration of their attacking quality, while the results against Bournemouth and Everton showed the defensive improvements Alonso has been seeking.
However, the defeat against Sunderland exposed familiar problems when Chelsea were unable to find a way through a determined defensive performance.
Enzo Le Fée's first-half penalty proved decisive, with Chelsea struggling to create clear opportunities despite enjoying periods of possession and territorial advantage.
The international break now provides Alonso and his coaching staff with an opportunity to work with those players who remain at the club, while several members of the squad will join their respective national teams.
Chelsea return to Premier League action on November 21 when they host Leeds United at Stamford Bridge.
Alonso hopes the players who remain in London can use the additional training time to improve their understanding and prepare for the next demanding period of the campaign.
“The plan is to use the time with the players we have,” Alonso added. “Some players will go on international duties, but we keep working.”
There is a positive precedent for Chelsea following the previous international interruption. They returned from that break with an emphatic 5-1 victory over Bournemouth, demonstrating the level of performance Alonso wants to see more regularly.
The manager will be hoping for a similar response against Leeds, although the broader objective is to ensure that Chelsea no longer alternate between impressive displays and disappointing results.
For Alonso, the quality is present within the squad. The challenge is turning that potential into a consistent level of performance capable of sustaining a challenge across the Premier League season.