No Network

I have an server on Aternos.me and when i start the server and enter it, my network is slow, i get glitches, and lag...and before it didnt when it was a 1.13.2, and its not my WiFi, because my WiFi is alright and no problems with it, and yet Minecraft multiplayer menu is slow pinging (takes 3 minutes for me) and then when  i waited, and join my server, its starts lagging and glitching.