Okay, I'm running Forge Minecraft Java 1.12.2. I've been all over the different versions too, all the way up to 1.16.1.
My Computer- (it is not beefy)
Intel(R) Core(TM) i3-6100T CPU @ 3.20GHz 3.19
8.00 GB RAM (allocated 4G through MC launcher)
64-bit operating system, x64-based processor
Intel(R) HD Graphics 530 graphics card
MC constantly freezes, every 10-15 seconds. World loading is spotty most of the time unless I stop, go into video settings and turn Graphics from FAST to FANCY and back again. I've looked at a TON of videos on how to fix this issue and nothing is really working. I have OptiFine_1.12.2_HD_U_F5 installed. I have BetterFps Mod installed.
Can someone please help me?