Slow uploadspeed with NextcloudPi on Raspberry Pi 4

Hey, my problem is, when i upload some files to my local server it hat an uploadspeed of 2 MB/s. I think its a little bit too slow. but i dont know how i can make it faster. I saw when i do ncp-config i can adjust the nc-limits but i dont know how many php threads nc need or whats ment with RedisMEM and how many needs it? can somebody help me making it faster? the upload and download speed to the internet of nc are the same but i’ve done a speedtest it is much more possible.

NextCloudPi version
distribution Raspbian GNU/Linux 10 \n \l
automount no
USB devices sda
datadir /media/HDD1/ncdata
data in SD no
data filesystem ext2/ext3
swapfile /var/swap
dbdir /var/lib/mysql
Nextcloud check ok
Nextcloud version
HTTPD service up
PHP service up
MariaDB service up
Redis service up
Postfix service up
internet check ok
interface eth0
certificates none
NAT loopback no