How to optimize api call PHP - php

Question

I'm working (for fun), with an API (Riot API), and I made something to retrieve match histories (it's in the game). And I've a problem, everything works really fine, but I don't know how to optimize it, what I mean is : I do the call every time the user refresh the page, and it takes loooong looong time. I tried to call it with AJAX, but didn't find a good way, AJAX dont find my objects.
Here is the code :
$match_history = [];
$api = "";
if (!empty($region)) {
try {
$api = new App\Library\RiotAPI\RiotAPI([
App\Library\RiotAPI\RiotAPI::SET_KEY =>
App\Config::API_KEY,
App\Library\RiotAPI\RiotAPI::SET_CACHE_RATELIMIT => true,
App\Library\RiotAPI\RiotAPI::SET_CACHE_CALLS => true,
App\Library\RiotAPI\RiotAPI::SET_REGION =>
App\Library\RiotAPI\Definitions\Region::getRegion($region),
]);
} catch (\Exception $e) {
// die($e->getMessage());
}
}
if ($api) {
// Insert current rank etc...
try {
$summoner = $api-
>getSummonerByName(App\Repository\UserRepository::getInstance()-
>getUserDetail($_SESSION['user']['id'], 'summoner_name'));
} catch (\Exception $e) {
$summoner = null;
}
// Match history
if (!empty($summoner)) {
try {
$matches = $api->getRecentMatchlistByAccount($summoner->accountId);
// For every matches
foreach ($matches as $match) {
$a_match = $api->getMatch($match->gameId);
if ($a_match->gameType === "MATCHED_GAME") {
$gameCreation = date("d-M-Y H:i:s", substr($a_match-
>gameCreation, 0, 10));
if ($gameCreation >= date("d-M-Y",
strtotime($user['created_at']))) {
// Get the participant ID of the customer
foreach ($a_match->participantIdentities as
$participantIdentity) {
if ($participantIdentity->player->currentAccountId
=== $summoner->accountId) {
$participantId = $participantIdentity-
>participantId;
}
}
// Get stats of the participant
foreach ($a_match->participants as $participant) {
if ($participant->participantId === $participantId)
{
$match_history[$match->gameId]['gameCreation'] =
$gameCreation;
$match_history[$match->gameId]['championId'] =
$participant->championId;
$match_history[$match->gameId]['spells']
['spell1'] = $participant->spell1Id;
$match_history[$match->gameId]['spells']
['spell2'] = $participant->spell2Id;
$match_history[$match->gameId]['win'] =
$participant->stats->win;
$match_history[$match->gameId]['kills'] =
$participant->stats->kills;
$match_history[$match->gameId]['deaths'] =
$participant->stats->deaths;
$match_history[$match->gameId]['assists'] =
$participant->stats->assists;
$match_history[$match->gameId]['goldEarned'] =
$participant->stats->goldEarned;
$match_history[$match->gameId]
['totalMinionsKilled'] = $participant->stats->totalMinionsKilled;
$match_history[$match->gameId]['items']['item0']
= $participant->stats->item0;
$match_history[$match->gameId]['items']['item1']
= $participant->stats->item1;
$match_history[$match->gameId]['items']['item2']
= $participant->stats->item2;
$match_history[$match->gameId]['items']['item3']
= $participant->stats->item3;
$match_history[$match->gameId]['items']['item4']
= $participant->stats->item4;
$match_history[$match->gameId]['items']['item5']
= $participant->stats->item5;
$match_history[$match->gameId]['items']['item6']
= $participant->stats->item6;
}
}
}
}
}
} catch (\Exception $e) {
// die($e->getMessage());
}
}
}
I would like to know if there's a way to : - Run it in background, without AJAX or something like : Keep in mind the match_history for X time, and then after X time, do the call again when the user refresh the page.
Thanks for your help!
Best Regards.