High memory usage (asset-packagist vs fxpio/cap)

composer.json

{
    "name": "dmstr/phd5-app",
    "minimum-stability": "beta",
    "repositories": [
      {
          "type": "composer",
          "url": "https://asset-packagist.org"
      }
    ],
    "require": {
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        "2amigos/yii2-date-picker-widget": "^1.0",
        "2amigos/yii2-date-time-picker-widget": "^1.0",
        "2amigos/yii2-disqus-widget": "^1.0",
        "2amigos/yii2-editable-widget": "^0.1.4",
        "2amigos/yii2-file-input-widget": "^1.0",
        "2amigos/yii2-file-upload-widget": "^1.0",
        "2amigos/yii2-gallery-widget": "^1.0",
        "2amigos/yii2-grid-view-library": "^0.1.1",
        "2amigos/yii2-highcharts-widget": "^1.0",
        "2amigos/yii2-leaflet-extension": "^1.0",
        "2amigos/yii2-leaflet-geocoder-plugin": "^1.0",
        "2amigos/yii2-leaflet-geosearch-plugin": "^1.0",
        "2amigos/yii2-selectize-widget": "^1.0",
        "2amigos/yii2-tinymce-widget": "^1.1",
        "2amigos/yii2-type-ahead-widget": "^1.1",
        "2amigos/yii2-usuario": "@dev",
        "alenkasun/yii2-github-browser": "@dev",
        "bedezign/yii2-audit": "^1.0.7",
        "bizley/podium": "dev-master",
        "borales/yii2-phone-input": "^0.0.5",
        "bower-asset/jquery-growl": "^1.3",
        "bower-asset/noty": "^2.3",
        "bushbaby/flysystem-mysql-backup": "^0.2.0",
        "callmez/yii2-wechat-sdk": "^0.3.0",
        "cinghie/yii2-cookie-consent": "^1.4",
        "creocoder/yii2-taggable": "^2.0",
        "dmstr/yii2-yaml-converter-command": "^0.3.1",
        "dmstr/yii2-news-module":"*",
        "docker-php/docker-php": "^1.24",
        "filsh/yii2-oauth2-server": "^2.0",
        "franciscomaya/yii2-sceditor": "dev-master",
        "hamstar/Wikimate": "^0.11.0",
        "himiklab/yii2-handsontable-widget": "^1.0",
        "insolita/yii2-migration-generator": "^2.2.9",
        "integral/flysystem-pdo-adapter": "^1.0",
        "jamband/yii2-schemadump": "^0.10.0",
        "jarkt/docker-php-client": "^0.9.2",
        "kartik-v/yii2-widgets": "^3.4",
        "knplabs/github-api": "^1.6",
        "kop/yii2-scroll-pager": "^2.5",
        "m4tthumphrey/php-gitlab-api": "dev-master",
        "madkom/docker-registry-api": "^0.8.5",
        "mdmsoft/yii2-admin": "^3.2",
        "mustangostang/spyc": "^0.5.1",
        "nemmo/yii2-attachments": "^1.0@beta",
        "netvlies/basecamp-php": "dev-master",
        "nikic/php-parser": "1.4.1 as 0.9.999",
        "nodge/yii2-eauth": "^2.4",
        "omauger/docker-compose-php": "@dev",
        "omnilight/yii2-shopping-cart": "^1.2",
        "pceuropa/yii2-menu": "^2.1.4",
        "php-http/guzzle6-adapter": "^1.0",
        "phpunit/phpunit": "5.*",
        "pigochu/yii2-jquery-locationpicker": "^0.2.2",
        "prawee/yii2-vuejs": "dev-master",
        "romdim/yii2-bootstrap-material": "^1.0",
        "ruskid/yii2-stripe": "^1.3",
        "samdark/yii2-webshell": "^2.0",
        "schmunk42/yii2-markdocs-module": "^0.4.0@alpha",
        "sidekit/config": "^1.0",
        "thomaspark/bootswatch": "^3.3",
        "unclead/yii2-multiple-input": "^1.4",
        "uran1980/yii2-jquery-essential": "^0.0.6",
        "vlucas/phpdotenv": "2.*",
        "vova07/yii2-imperavi-widget": "^1.2",
        "wbraganca/yii2-dynamicform": "^2.0",
        "wikimedia/composer-merge-plugin": "~1.3.1",
        "yii2mod/yii2-cart": "^1.3",
        "yii2mod/yii2-comments": "^1.9.7",
        "yii2mod/yii2-editable": "^1.3",
        "yii2mod/yii2-ion-slider": "^1.1",
        "yii2mod/yii2-link-preview": "^1.3",
        "yii2mod/yii2-settings": "^2.0",
        "yii2tech/ar-position": "^1.0.0",
        "yii2tech/balance": "^1.0.1",
        "yii2tech/config": "^1.0.4",
        "yii2tech/csv-grid": "^1.0.1",
        "yii2tech/sitemap": "^1.0.0",
        "yiidoc/yii2-redactor": "^2.0",
        "yiisoft/yii2-elasticsearch": "^2.0",
        "yiisoft/yii2-httpclient": "^2.0",
        "yiisoft/yii2-queue": "dev-master",
        "yiisoft/yii2-redis": "^2.0",
        "yiisoft/yii2-shell": "^2.0",
        "yiisoft/yii2-smarty": "^2.0",
        "zxbodya/yii2-gallery-manager": "dev-master",
        "cybercog/yii2-google-analytics": "^0.3.2",
        "tugmaks/yii2-rss-reader": "dev-master#505a966913f8a7d6d0a1b764983352c40d86c976",
        "brussens/yii2-maintenance-mode": "^0.2.6",
        "sam002/yii2-otp": "^1.0",
        "dvizh/yii2-cart": "dev-master",
        "yii2tech/admin": "^1.0"
    },
    "conflict": {
        "fxp/composer-asset-plugin": "*"
    },
    "extra": {
        "merge-plugin": {
            "require": [
                "composer.phd5.json"
            ]
        }
    },
    "config": {
        "preferred-install": {
            "dmstr/*": "source",
            "hrzg/*": "source",
            "schmunk42/*": "source",
            "*": "auto"
        },
        "fxp-asset": {
            "enabled": false,
            "installer-paths": {
                "npm-asset-library": "vendor/npm",
                "bower-asset-library": "vendor/bower"
            },
            "vcs-driver-options": {
                "github-no-api": true
            },
            "git-skip-update": "1 week",
            "pattern-skip-version": "(-build|-patch)",
            "optimize-with-installed-packages": false
        }
    }
}

composer.phd5.json

{
    "repositories": [
        {
            "type": "vcs",
            "url": "https://github.com/dmstr-forks/yii2-rbac.git"
        },
        {
            "type": "vcs",
            "url": "https://github.com/dmstr-forks/yii2-flysystem.git"
        }
    ],
    "require": {
        "bedezign/yii2-audit": "^1.0.7",
        "2amigos/yii2-ckeditor-widget": "^2.1.0",
        "2amigos/yii2-config-kit": "^1.0.0",
        "2amigos/yii2-selectize-widget": "^1.0",
        "2amigos/yii2-translateable-behavior": "^0.1.2",
        "cinghie/yii2-cookie-consent": "^1.4",
        "dektrium/yii2-rbac": "^0.3.999.3",
        "dektrium/yii2-user": "^0.9.12",
        "lajax/yii2-translate-manager": "^1.6.0",
        "codemix/yii2-localeurls": "^1.4.12",
        "codemix/yii2-streamlog": "^1.2.1",
        "creocoder/yii2-flysystem": "^0.8.999.1",
        "dmstr/yii2-backend-module": "^0.7.0",
        "dmstr/yii2-contact-module": "^0.1.3",
        "dmstr/yii2-redirect-module": "^0.3.1",
        "dmstr/yii2-filefly-module": "^0.6.13",
        "dmstr/yii2-filemanager-widgets": "^0.6.0",
        "dmstr/yii2-migrate-command": "^0.4.0-beta1",
        "dmstr/yii2-prototype-module": "^0.6.0",
        "dmstr/yii2-resque-module": "^0.4.0",
        "dmstr/yii2-widgets2-module": "^0.6.0",
        "knplabs/github-api": "^1.7",
        "league/flysystem-aws-s3-v3": "^1.0",
        "loveorigami/yii2-notification-wrapper": "^6.1",
        "mexitek/phpcolors": "^0.4.0",
        "pheme/yii2-settings": "^0.5.0",
        "phpoffice/phpexcel": "^1.8",
        "roave/security-advisories": "dev-master",
        "romdim/yii2-bootstrap-material": "^1.0",
        "thomaspark/bootswatch": "^3.3",
        "trntv/yii2-aceeditor": "^2.0.2",
        "uran1980/yii2-jquery-essential": "^0.0.6",
        "vlucas/phpdotenv": "2.*",
        "yiisoft/yii2": "~2.0.11",
        "yiisoft/yii2-bootstrap": "2.*",
        "yiisoft/yii2-redis": "^2.0.5",
        "yiisoft/yii2-twig": "^2.1.0",
        "zhuravljov/yii2-datetime-widgets": "^1.0"
    },
    "require-dev": {
        "dmstr/yii2-cms-dev-metapackage": "^1.1.2",
        "codeception/codeception": "^2.2.8"
    },
    "conflict": {
        "bower-asset/yii2-pjax": "2.0.7"
    }
}