Price Range in filter always same in code

I have created a controller to get layered navigation but, I am facing an issue in price layered navigation price range always the same in every category 0-10000 10000-20000 etc not according to a product in the category below is my code

try {
$this->verifyRequest();
$environment = $this->emulate->startEnvironmentEmulation($this->storeId);
$category = $this->categoryId;
$objectManager = ObjectManager::getInstance();
$filterList = $objectManager->getInstance()->create(MagentoCatalogModelLayerFilterList::class,[
‘filterableAttributes’ => $this->filterableAttributes
]
);
$layer = $this->layerResolver->get();
$layer->setCurrentCategory($category);
$filters = $filterList->getFilters($layer);
$maxPrice = $layer->getProductCollection()->getMaxPrice();
$minPrice = $layer->getProductCollection()->getMinPrice();

        $i = 0;
       foreach($filters as $filter) {

            $finalFilter['label']   = (string)$filter->getName();
            $finalFilter['code']    = $filter->getRequestVar();
            $items                  = $filter->getItems();
            $filterValues           = [];
            $j                      = 0;
            foreach($items as $item) {
                
                if ($finalFilter['code'] == "color") {

                    $filterValues[$j]['display'] = strip_tags($item->getLabel());
                    $filterValues[$j]['value']   = $item->getValue();
                    $filterValues[$j]['count']   = $item->getCount();
                    $filterValues[$j]['image']   = $this->getAtributeSwatchHashcode($item->getValue());
                    $j++;
                } else {
                    $filterValues[$j]['display'] = strip_tags($item->getLabel());
                    $filterValues[$j]['value']   = $item->getValue();
                    $filterValues[$j]['count']   = $item->getCount();
                    $j++;
                }
            }
            if(!empty($filterValues) && count($filterValues)>1) {
                $finalFilter['options'] =  $filterValues;
                $this->returnArray['availablefilter'][] =  $finalFilter;
            }
            $i++;
        }  
        $this->returnArray["success"] = true;
        $this->emulate->stopEnvironmentEmulation($environment);
        return $this->getJsonResponse($this->returnArray);
    } catch (Exception $e) {
        $this->returnArray["message"] = __($e->getMessage());
        return $this->getJsonResponse($this->returnArray);
    }