Backup for stuck

Hi,
We’ve been looking to switch from updraft for multiple installations and we’d thought to try out BackWPup.
We really liked the intuitiveness of the plugin, However we are facing a rather wierd issue.
Backups Stuck when the destination file reaches 2GB.
We’ve tried all types of files(tar,targz, zip) but the issue still persists.

In the log file i see [01-Nov-2021 04:31:04] Restart after 52 seconds. with various seconds.

We tried playing with the script execution time but it yielded the same results(20s-30s)

debug info is:

WordPress version: 5.8.1
BackWPup version: 3.10.0
PHP version: 7.4.24  (64bit)
MySQL version: 10.3.28-MariaDB
cURL version: 7.61.1
cURL SSL version: OpenSSL/1.1.1g
WP-Cron url: https://www.officetime.gr/wp-cron.php
Server self connect: Not expected HTTP response:
Status-Code: 200
Server: nginx
Date: Mon, 01 Nov 2021 06:44:41 GMT
Content-type: text/html; charset=UTF-8
Vary: Accept-Encoding
X-powered-by: PHP/7.4.24
Expires: Wed, 11 Jan 1984 05:00:00 GMT
Cache-control: no-cache, must-revalidate, max-age=0
X-frame-options: SAMEORIGIN
X-xss-protection: 1; mode=block
X-content-type-options: nosniff
Referrer-policy: no-referrer-when-downgrade
Strict-transport-security: max-age=31536000; includeSubDomains
Content-encoding: gzip

Document root: /home/office/www
Temp folder: /home/office/www/wp-content/uploads/backwpup-dca0c7-temp/
Log folder: /home/office/www/wp-content/uploads/backwpup-dca0c7-logs/
Server: nginx/1.14.1
Operating System: Linux
PHP SAPI: fpm-fcgi
Current PHP user: office
Maximum execution time: 600 seconds
BackWPup maximum script execution time: 20 seconds
Alternative WP Cron: Off
Disabled WP Cron: Off
CHMOD Dir: 0755
Server Time: 6:44
Blog Time: 08:44
Blog Timezone: 
Blog Time offset: 2 hours
Blog language: en-US
MySQL Client encoding: utf8mb4
PHP Memory limit: 550M
WP memory limit: 256M
WP maximum memory limit: 550M
Memory in use: 2.00 MB
Disabled PHP Functions:: exec, passthru, shell_exec, system
Loaded PHP Extensions:: Core, PDO, Phar, Reflection, SPL, SimpleXML, Zend OPcache, bcmath, bz2, calendar, cgi-fcgi, ctype, curl, date, dom, exif, fileinfo, filter, ftp, gd, gettext, hash, iconv, igbinary, imagick, intl, json, libxml, mbstring, mcrypt, msgpack, mysqli, mysqlnd, openssl, pcre, pdo_mysql, pdo_sqlite, posix, session, shmop, soap, sockets, sodium, sqlite3, standard, sysvmsg, sysvsem, sysvshm, tokenizer, xml, xmlreader, xmlwriter, xsl, zip, zlib

could you please help us out?