I am brand new to 3D printing and now fairly new to the Tronxy X5S that I researched and bought recently. I am really enjoying the process of 3D printing, and this printer. I have been trying to produce good quality and timely prints so that I can dial this thing in as close to perfect as you can expect from an inexpensive printer. As I said, I am brand new to 3D printing, but his printer FAR exceeds any expectations that I had going into this. BUUUTTTT, I'm having an issue with the speed. I've been reading forums, and reviews, and just about any information I can find on printer setups and what works best for others, and have found that for PLA, around 200 C, and a print speed of 60 mm/s seems to be the norm, and I can get good prints at those basic settings IF the printer doesn't "jump". I don't know the actual term, but my printer will get so far into a print, (i.e. the Benchy), and then this awful tire screeching sound happens, and the hot end will be offset from the print and make a step, if that's what you call it. The only thing that I have found to stop this is to slice the model at regular settings and then manually turn the print speed down to 50% after the print starts from the micro SD. At first I thought that the belts weren't tight enough, so i re-tightened them. ( i haven't modded this printer with anything yet). Kept happening. So then I looked closer at the settings in CURA, everything is set to what I see is the norms on the internet. To me it seems like the processors can't handle the information speed and try to get the axis motors to do too many things at once. It doesn't jump very far, usually just enough to irritate. I understand that this is a pretty vague description and if there's any more information that I can give you to help you help me please let me know. This printer would be absolutely perfect if it wasn't for this stupid jumping thing. Thank you in advance for any help that can be provided.