I just started playing ATM7 (after hundreds of hours put into ATM6), and upon loading into my first couple test worlds, the first thing I noticed was how slow player movement is. It's not tick lag or low FPS. I have low of the former and hundreds of the latter, running on a beefy computer.

All things player movement related are just about 30% slower (give or take) than standard Minecraft and ATM6. Jumping is the same height, but I spend forever in the air, like I'm in low gravity. Sprint speed is super slow and so is walk speed. All around, movement and eating is just slowed down, like moving through molasses. Eating seems to be at least 30% slower, too.

Even dropped items move slower, taking significantly more time than it normally takes items to drop from tree height to the ground.

I don't know if this is a bug or intentional design, but it's made the modpack unplayable for me. It takes forever just to move and pick up items. Block break time seems to be unaffected, though. I've gone through all in-game settings, and have found nothing that could be the cause. I hope there's a solution for this. I just can't seem to find one.

I have no clue what's going on here. Try testing the newest version and let us know how that goes.