Move some of the weight forward. You don’t want a completely balanced boat, but weight too far forward or too far back is killer to take off. If this doesn’t fix the problem there are two things you may consider doing.
Option 1. Weld 4” wide Trim Plates/Trim Tabs to the hull’s transom. I am not well versed in Blazer crafts and what I know about them is that the hulls are usually lighter (thinner) gauge aluminum than we use here out east. Regardless, you could take two 12” by 8” pieces of .125 5052 aluminum, round off the edges with a 4” hand or bench grinder and break/bend the two pieces a slightly over 90 degrees so you have “L” brackets that are 12” long. 4” to weld and 4” that extends beyond the boat. Weld these to the transom (all 4 sides is best IMO) so that the bottom of the bracket is “exactly flush” with the bottom of the boat. Then you’ll want to bend the far ends down 1/8” to 1/4“ They will bend with a pair of 13” adjustable wrenches. May take a time or tow to get it just right but these will drop the bow and also manage bow-bounce. Almost all of the higher performance jet boats around her have them. Most are built right into the hull.
Option2. Order a set of Jet Wings. Jet Wings are designed to help "aft-heavy" crafts plane quicker. So if from a static position, you drop the throttle and your line of sight is lifted above the horizon (BOW High), then the addition of a Jet Wing will help plane the bow quicker. Jets are fussy- and it is not as effective as a prop that you can adjust the trim as it comes on plane. Balancing the layout is more important in a jet than a prop. Again, it doesn't have to be perfect, and a little a$$ heavy is actually ok. Consider that most mass produced boats have helm seating that is rearward placing the driver, outboard, battery, fuel and even a passenger near the rear of the craft. In a true 'jet designed' craft the helm position is almost always forward of the center of the boat to better balance the craft and to create a line of site that is always on the rocky nature of the river. The wing helps ‘less than ideal’ balanced jet crafts get on plane quicker.
https://www.jetwingllc.com/
Hope that this is helpful. If you have a good Jet or Weld Shop near you, they would likely suggest the same. The 5052 is important to Option #1. You want an alluminum alloy with good bend properties. Harder aluminums "crack" over time. Again, a good weld shop will already know this.