Lag server when saving

Hello!

I have been trying to host a Rust server for a few months, between comings and goings I have always come across some instabilities, after many hosting companies, I am in one that offers me these machine configurations:

• 8GB RAM
• 85GB SSD
• Intel Xeon - 5 cores
• Uplink 120 Mbps
• Anti DDoS Included
• SO: ubuntu-18.04-x86_64

To manage Rust Server, I use Linux Game Server Manager - https://linuxgsm.com/

I always try to keep Oxide and Plugins updated to their latest versions:
01 "Vanish" (1.3.8) by Whispers88 (0.27s) - Vanish.cs
02 "Entity Owner" (3.2.4) by Calytic (0.01s) - EntityOwner.cs
03 "Furnace Splitter" (2.3.1) by FastBurst (3.73s) - FurnaceSplitter.cs
04 "Kits" (3.3.1) by Reneb (0.06s) - Kits.cs
05 "NightVision" (2.2.0) by Clearshot (0.21s) - NightVision.cs
06 "No Give Notices" (0.3.0) by Wulf (0.00s) - NoGiveNotices.cs
07 "Rust Admin" (1.0.1) by misticos (0.01s) - RustAdmin.cs
08 "Advert Messages" (3.0.2) by LaserHydra (0.03s) - AdvertMessages.cs
09 "Timed Permissions" (1.5.2) by LaserHydra (0.02s) - TimedPermissions.cs

Let's get to the problem:
I noticed that after a WIPE, the server suffers with instabilities when saving, but I don't know why, but I was able to prove that the instability occurs with more than 20 players (out of 100 slots), entities around 42K and always when the server make the save.
And I already searched for on the internet, and I didn’t find how to solve, or the reason for it, if it’s a problem with the game itself, or the machine where the server is hosted, and as I don’t have a lot of knowledge about the servers, I would like some opinions about this situation ...
Another thing I noticed, was that after the update of the game this day, the average FPS of the server has also been below, without changing the CPU usage for example ...

Some information about the system statistics:
• Saving takes place every 5 minutes
• Average RAM usage: 97%
• CPU Information: http://prntscr.com/10ez400
• Network Information: http://prntscr.com/10ez57e
• Rust Server Infomation: http://prntscr.com/10ezalc

I thank you all for your help, and forgive my English, it was typed with the help of Google Translate.

Im no expert but 8 GIG Ram sound and looks as though its the absolute bare minimum. Its even showing its running at 97% which means the server is constantly juggling with resources.

I run 32 GIG Currently sat at 106,786 entities at 34 % MEM usage at around 11 GIG Used.

Seems like a really low FPS also. Probably a shared box