To get a useful fast battleship version of the Super Lion, the displacement really balloons

I made another attempt at a fast battleship version of Admiral Fisher's Super Lion concept for a 30 knot capital ship with 10-15in guns. The way that I have structured the design, I had to let the displacement grow considerably. The dimensions became 812ft x 108ft x 33ft and the displacement was 45,875 tons. The armour basis was 13 inches. I did not use the "all-or-nothing" scheme, as it seems inappropriate. I also did not use the wide belt of uniform thickness that I usually like. This is the Springsharp report. I have been looking at my two alternative photos of the Super Lion and decided to try this again.

Super Lion-fast battleship version, Enter country Enter ship type laid down 1912 (Engine 1915)

Displacement:
 41,537 t light; 43,387 t standard; 45,875 t normal; 47,866 t full load

Dimensions: Length overall / water x beam x draught
 812.00 ft / 812.00 ft x 108.00 ft x 33.00 ft (normal load)
 247.50 m / 247.50 m x 32.92 m  x 10.06 m

Armament:
      10 - 15.00" / 381 mm guns (5x2 guns), 1,920.00lbs / 870.90kg shells, 1912 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, majority forward, 2 raised mounts - superfiring
      14 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1912 Model
   Breech loading guns in casemate mounts 
   on side, all amidships
   14 guns in hull casemates - Limited use in heavy seas
 Weight of broadside 20,712 lbs / 9,395 kg
 Shells per gun, main battery: 80

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 13.0" / 330 mm 580.00 ft / 176.78 m 9.00 ft / 2.74 m
 Ends: 6.00" / 152 mm 160.00 ft / 48.77 m 9.00 ft / 2.74 m
   72.00 ft / 21.95 m Unarmoured ends
 Upper: 8.00" / 203 mm 580.00 ft / 176.78 m 8.00 ft / 2.44 m
   Main Belt covers 110 % of normal length

   - Torpedo Bulkhead:
  2.00" / 51 mm 580.00 ft / 176.78 m 29.00 ft / 8.84 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 13.0" / 330 mm 8.00" / 203 mm  13.0" / 330 mm
 2nd: 6.00" / 152 mm 6.00" / 152 mm  6.00" / 152 mm

   - Armour deck: 3.00" / 76 mm, Conning tower: 13.00" / 330 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 157,275 shp / 117,327 Kw = 30.00 kts
 Range 6,500nm at 14.00 kts
 Bunker at max displacement = 4,479 tons

Complement:
 1,566 - 2,037

Cost:
 £4.218 million / $16.874 million

Distribution of weights at normal displacement:
 Armament: 2,298 tons, 5.0 %
 Armour: 14,275 tons, 31.1 %
    - Belts: 4,740 tons, 10.3 %
    - Torpedo bulkhead: 1,245 tons, 2.7 %
    - Armament: 4,520 tons, 9.9 %
    - Armour Deck: 3,412 tons, 7.4 %
    - Conning Tower: 359 tons, 0.8 %
 Machinery: 5,957 tons, 13.0 %
 Hull, fittings & equipment: 19,006 tons, 41.4 %
 Fuel, ammunition & stores: 4,338 tons, 9.5 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   61,238 lbs / 27,777 Kg = 36.3 x 15.0 " / 381 mm shells or 8.4 torpedoes
 Stability (Unstable if below 1.00): 1.07
 Metacentric height 6.4 ft / 1.9 m
 Roll period: 18.0 seconds
 Steadiness - As gun platform (Average = 50 %): 65 %
   - Recoil effect (Restricted arc if above 1.00): 0.89
 Seaboat quality  (Average = 1.00): 1.30

Hull form characteristics:
 Hull has a flush deck
 Block coefficient: 0.555
 Length to Beam Ratio: 7.52 : 1
 'Natural speed' for length: 28.50 kts
 Power going to wave formation at top speed: 51 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -1.00 degrees
 Stern overhang: -1.00 ft / -0.30 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  33.00 ft / 10.06 m
    - Forecastle (20 %): 29.00 ft / 8.84 m
    - Mid (67 %):  29.00 ft / 8.84 m
    - Quarterdeck (15 %): 21.00 ft / 6.40 m
    - Stern:  21.00 ft / 6.40 m
    - Average freeboard: 27.40 ft / 8.35 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 98.0 %
  - Above water (accommodation/working, high = better): 208.6 %
 Waterplane Area: 61,479 Square feet or 5,712 Square metres
 Displacement factor (Displacement / loading): 103 %
 Structure weight / hull surface area: 213 lbs/sq ft or 1,038 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.96
  - Longitudinal: 1.44
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent
 Good seaboat, rides out heavy weather easily