Install a Snapshot 1.14 Pre-Release 1 server through the Control Panel (Servers → Select your server → Game servers → Add Game Server → Snapshot 1.14 Pre-Release 1)
I run a highly complex and large modded Minecraft for me and my friend, easy to use, very good uptime, and minimal to no lag, with a 1200 mod world!!
I would highly reccomend this to anyone!