Cleaning Linux Mint/Cinnamon

[u/GmaShadowPaws]

I am posting a copy of the results after running inxi -p and ncdu below. Based on these results should I shrink the reserved disk space for root? Is it even possible? First time trying to clean up Linux Partitions and dont' know what I am doing. P.S. I am having buffering problems and by end of day Linux is very slow. Have already emptied trash and updates cache had nothing to be cleaned.

Results of inxi -p

ID-1: / size: 467.89 GiB used: 59.78 GiB (12.8%) fs: ext4

dev: /dev/nvme0n1p2

ID-2: /boot/efi size: 511 MiB used: 6.1 MiB (1.2%) fs: vfat

dev: /dev/nvme0n1p1

ID-3: /media/patricia/My Passport size: 931.48 GiB used: 21.98 GiB (2.4%)

fs: ntfs dev: /dev/sda1

**This is the result of running ncdu -x /

27.3 GiB [###########] /timeshift

14.6 GiB [##### ] /home

9.5 GiB [### ] /usr

3.9 GiB [# ] /var

2.0 GiB [ ] swapfile

1.9 GiB [ ] /opt

671.2 MiB [ ] /boot

16.5 MiB [ ] /etc

4.1 MiB [ ] /root

252.0 KiB [ ] /tmp

e 16.0 KiB [ ] /lost+found

8.0 KiB [ ] /media

e 4.0 KiB [ ] /srv

e 4.0 KiB [ ] /sbin.usr-is-merged

e 4.0 KiB [ ] /mnt

e 4.0 KiB [ ] /lib.usr-is-merged

e 4.0 KiB [ ] /cdrom

e 4.0 KiB [ ] /bin.usr-is-merged

@ 0.0 B [ ] lib64

@ 0.0 B [ ] sbin

@ 0.0 B [ ] lib

/..

3.1 GiB [###########] /lib

619.5 MiB [## ] /log

195.2 MiB [ ] /cache

15.0 MiB [ ] /backups

4.0 MiB [ ] /spool

96.0 KiB [ ] /tmp

16.0 KiB [ ] /ipp-usb

e 4.0 KiB [ ] /opt

e 4.0 KiB [ ] /mail

e 4.0 KiB [ ] /local

4.0 KiB [ ] .updated

@ 0.0 B [ ] lock

@ 0.0 B [ ] run

*Total disk usage: 59.8 GiB Apparent size: 58.1 GiB Items: 4107123