Doinker with Racerstar BR1103 and RS6A ESC

Here it is, my first brushless micro build. Well, this cute little thing is not bad, but I have to say that I expected a bit more power.
These tiny Racerstar BR1103 motors do not have to much punch. I ordered a set of DYS BE1104 6500kv, should do better.
The frame is printed of PETG, but I broke it already. Maybe I printed to hot, I'll give it another try.
Software is Betaflight 3.01, raised P and D a bit and adjusted rates to my needs, that's it.
Setup:
Doinker Frame V2 PETG:
Racerstar BR1103 8000kv motors and RS6A 1-2s ESC:
Eachine Tiny Frsky 8CH PPM SBUS Receiver:
FuriousFPV Piko BLX F3 FC:
Eachine EF-01 AIO 5.8G 40CH 25MW VTX 800TVL 1/3 Cmos FPV Camera:
Turnigy Nano-Tech 450mAh 2s 65c battery