I only have 84 Actors 
whats going on? I have 8 core prossesser so Its not that…
Not a lot of information to go on, there could be any number of reasons why your machine may be struggling without knowing all the details about your system. Things that would be helpful for troubleshooting:
- Do the other hardware and software components in your system meet the minimum requirements for running UE4? (GPU, Video RAM, DirectX version, etc.)
- How big is your system page file, and is it optimized to work with your available RAM?
- What is the transfer rate of your HDD and/or how many RPMs does it make?
- Have you checked Windows Task Manager to view the current memory load of all applications during runtime? What is the current memory footprint for UE4 on your machine at runtime?
Keep us updated and be sure to tell us if you managed to solve the issue.
I only have 6 Gigs of RAM for now and am able to get by most of the time, but I too have massive freezing up.
One thing I noticed is visual studio 2013 uses up a TONNN of RAM on it’s intellisense parser. By default, it seems to launch 5 intellisense server objects, but you can lower it down to 2. I’ve noticed significant performance increases in my PC after making that change.
It’s under Tools->Options->Text Editor->C/C+±>Advanced->Max Cached Translation Units.
Set that down to 2 if it’s not already at 2. Then I think you need to restart Visual Studio. I remember it was greyed out for some reason and stayed at 5 so I thought I wasn’t able to change it, but then I restarted visual studio and it stays at 2 now.
Sorry I forgot too add details! My GPU is a 1GB AMD 8760 and Direct x is updated . My system page file I have no idea…My HDD is not sure on that either. How do I find those 2 things? When UE4 is running with 84 actors Im using 11GB ram of 12…
To look up your pagefile size, go to the start menu and in the search bar type “System Information”. Run the System Information program and on the summary page at the bottom of the list is the pagefile name and size. Ideally it should be under 1GB unless your harddrive RPMs are 10k or better (if you’re using a solid state drive then RPMs don’t matter).
Some more meaningful data would be to know how much memory is being taken up when UE4 is not running. Also, UE4 memory consumption will vary greatly on the complexity of code/blueprints, and the number of assets in the library. Some things to keep in mind is that Actor Count doesn’t equate to memory consumption, as actors can be instanced (meaning only one copy of an actor is used as a reference in memory to populate a level). You can easily blow out your memory by having a bloated content library. Textures and audio files are the biggest eaters of RAM, so if you have lots of these in your project they are all being loaded into memory - even if you don’t have them loaded in your current level.
ok my HDD transfer rate is 10MB…My Ram is using 3.6GB Ideal…When I load UE4 in a default level its at 4.1GB…Then When I load my level it hits 8GB…My pagefile size is 12224MB :/… Anymore Advice would be great! Plus Thank you for help…
Thanks Illyay 
Well from that we know it’s your project and not necessarily UE4 misbehaving, but I honestly couldn’t tell you anything more that without actually seeing your project to know what’s out of order. Try to remove/consolidate the unused assets you have in your content library - especially unused textures - and simplify things down a bit wherever possible. Reduce the collision complexity and lightmap resolution on surfaces/meshes, cut down on emitters, reflection spheres, or light functions which tend to be performance-heavy items. Hopefully that helps.
Good luck!
Thank you very much 
I’ll try to tweek it But Im learning more each day so thank you for teaching me more <3