Perfect. Thank you very much. I removed the LVM and decide to use entire NVMe. Now bpi-r3 really work very well. Only with MMC was not good.
root@bpi-r3:~# hdparm -Tt --direct /dev/nvme0n1
/dev/nvme0n1:
Timing O_DIRECT cached reads: 942 MB in 2.00 seconds = 470.62 MB/sec
Timing O_DIRECT disk reads: 1890 MB in 3.00 seconds = 629.92 MB/sec
root@bpi-r3:~# cat /boot/uEnv.txt
fit=bpi-r3.itb
root=/dev/nvme0n1p1 rootfstype=ext4 rootwait
root@bpi-r3:~# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 469G 965M 444G 1% /
devtmpfs 993M 0 993M 0% /dev
tmpfs 995M 0 995M 0% /dev/shm
tmpfs 398M 1.6M 397M 1% /run
tmpfs 5.0M 0 5.0M 0% /run/lock
/dev/mmcblk0p5 100M 8.3M 92M 9% /boot
tmpfs 199M 0 199M 0% /run/user/0
root@bpi-r3:~# mount
/dev/nvme0n1p1 on / type ext4 (rw,relatime)
devtmpfs on /dev type devtmpfs (rw,nosuid,noexec,relatime,size=1016064k,nr_inodes=254016,mode=755)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,size=407220k,nr_inodes=819200,mode=755)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
cgroup2 on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate,memory_recursiveprot)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
bpf on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
tracefs on /sys/kernel/tracing type tracefs (rw,nosuid,nodev,noexec,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
/dev/mmcblk0p5 on /boot type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
tmpfs on /run/user/0 type tmpfs (rw,nosuid,nodev,relatime,size=203608k,nr_inodes=50902,mode=700)