# Ue 4.26.2 - High Memory Usage in Editor - Level Streaming **URL:** \ **Category:** Programming & Scripting\ **Tags:** unreal-engine\ **Created:** [July 22, 2022, 2:37pm UTC](https://forums.unrealengine.com/t/ue-4-26-2-high-memory-usage-in-editor-level-streaming/611806 "2022-07-22T14:37:09Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Lupoluke](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Lupoluke](https://forums.unrealengine.com/u/Lupoluke)\ **Post date:** [July 22, 2022, 2:37pm UTC](https://forums.unrealengine.com/t/ue-4-26-2-high-memory-usage-in-editor-level-streaming/611806/1 "2022-07-22T14:37:09Z")
Hi all, I am working on an open world project. My Map is divided in small square. Every square is filled up with 10-15 sublevels. Every Sublevel is driven by a Blueprint streaming method and Streaming level is enabled. Unfortunatly, I am getting those issues: 1. In editor, I have something like 40 gb of memory usage (at this time isn t a problem but it will be as soon as it’ll hit 90 gb) 2. Opening the project is dramatic: although all of my levels aren’t visible neither loaded (they are data driven loaded by my blueprint), i get something like 2-3 minutes before Ue4 opens the main island. Questions are: 1. how I can avoid having sublevels loaded in memory in Editor (in standalone game they are loaded and unload right)? 2. how can I speed up opening the project? 3. Maybe I am missing a setting of a level streaming here or there? I have had a check on the forum. there was a dev times ago said that you’have had to enable level streaming: I have it enabled but the trick didn’t worked. ( [Why are my sublevels loaded automatically? - Unreal Engine / Programming & Scripting - Unreal Engine Forums](https://forums.unrealengine.com/t/why-are-my-sublevels-loaded-automatically/415853) ) Thanks for your time Lupo