Gameplay "lag" after updating to newest patch

Since updating to the newest hotfix, I’ve been getting strange “lag” in a lot of scenarios - sometimes blocks will disappear when broken, but not actually drop the item or show particle effects for a few seconds, redstone buttons when placed in certain areas will just get stuck in the “pressed” position and continue to power connected blocks until broken, opening my inventory will randomly take a few seconds every now and then, and my loading times also seem to have increased. My actual framerate appears to be just fine throughout all of this, it almost seems reminiscent of server lag despite me being in a singleplayer world with multiplayer turned off.