I have a Record sabre 250. It is about 18 months old and had low to average amount of use. When I first got it I had no trouble cutting through anything at a pace that was slow enough to leave a nice finish. I have always used the same tuffsaw blades. Cuts it used to make very comfortablely it is now stalling on at the same or slower speeds. It always makes the cuts and the finish is the same but it is definitely not as capable as it was. The blades are sharp, the timber is the similar and the stalling is becoming more common. Has anyone else had this issue? I'm hoping for a quick fix that I can manage myself instead of having it looked at under warranty. Thank you