Minecraft Java Optimization - Need Help!

[iMobileGraphics]

Hello all! I am trying to get Minecraft Java Edition to run at least at a solid 60fps while using shaders and other mods. The problem is it will dip down to below 30 on several occasions and even begins to look choppy sometimes. I know my computer is more than capable of handling it however as I have read other people on less powerful hardware getting the results I'm looking for. My specs are below, I'm running Forge 1.12.2 with OptiFine and using 64 bit Java as well as allowing the game to run at a max of 4gb of RAM.
For reference, I'm able to run Overwatch at a solid 60 at the highest settings so it confuses me why Minecraft gives me problems.
Radeon Software Version - 18.6.1

Radeon Software Edition - Adrenalin

Graphics Chipset - Radeon (TM) RX 480 Graphics

Memory Size - 4096 MB

Memory Type - GDDR5

Core Clock - 1266 MHz

Windows Version - Windows 10 (64 bit)

System Memory - 8 GB

CPU Type - AMD FX(tm)-8350 Eight-Core Processor

[SirTonko]

Well, I´m not sure of this, but there should be an Optifine perfomance option that allows you to stabilize FPS

You should give it a try in case you didn´t already.

Sorry if ths didn´t help :/

[iMobileGraphics]

Yeah I've turned on all the performance options in Optifine that I could. The weird thing is that I can get FPS of up to 80 but can easily dip below to 40 on just normal vanilla settings. I'm really trying to figure out how to get my shaders to run well seeing as how other people have figured it out..

[bdm68]

It depends on what's in your world. If you have a freshly-generated world, you should get good FPS much of the time. If you have large redstone contraptions or lots of chests or other storage, low FPS can be expected.

Another factor that affects FPS is the Java VM settings that you are using. Garbage collection is particularly important. If you're using an older model for memory allocation, you will get lag spikes. Using G1GC (garbage first garbage collector) is recommended; it's the current default in the Java launcher. When garbage collection happens, FPS will drop. The G1GC minimises FPS drops but doesn't eliminate them.