Minecraft is laggy despite 60fps?

It feels like laggy, despite the 60 fps displayed in ingame…

For one thing, your fps ad may not be completely correct.

It may also be due to the amount of users that are on a server.

Are you using Labymod? - If not try that, from experience the game should run smoothly.

No, Forge (1.8.9-forge1.8.9-11.15.1.1722) with follow mods:

It should not be that. - Have you ever tried it with a fps booster?

What exactly do you mean?

You could use a LabyMod fps booster.

On my hardware it can't really lie:

i7 7700HQ

2x8 DDR4

GeForce GTX 1060

The utilization of processor, etc. Always stays below 15% …

Then it's up to the router, or to your Internet connection, everything else is inexplicable.

Do you mean with Laggy real pictures? Or just that it feels like 20fps? Or do you mean that everything feels delayed (mouse movement, etc.)

That's certainly not the point.

About like 45fps or so. It's still possible to play, but I notice Ruckler with fast mouse movements

Small update:

In fullscreen mode this does not seem to be the case.

Then I advise you to check with a specialist.

Does it make a difference if you turn VSync on or off? And is your video driver up-to-date?