This has been happening a lot lately. It could be because I have sooo many items in my inventory (hooray for low-capacity bank storage) or maybe it’s because of the delay between my game and the server (around 200 ping).
It’s really annoying. For example, whenever I go to Crystal Mines Lot 2 - 2F and collect the crystals, my game freezes itself for 2~3 seconds when I go pick up all the dropped crystals.
Just in case you need my computer specs:
Processor: AMD Phenom II X4 955 (quite old processor, I know and I will change it later this year)
Graphics Card: NVIDIA GTX 970
Memory: 8GB
OS: Windows 10 64bits
Hard Drive: 256GB SSD (Main HD and it’s where the game is installed) + 1TB HDD
Power Supply: 700W
Location: Brazil (using a 15MB internet connection)