Cirrus SR20 pilot reported experiencing less than normal braking action that nearly resulted in a runway overrun and indicated the possible cause was new brake pad glazing.

Narrative

Landing at ZZZ was immediately following departure from ZZZ1 to return plane to home hangar after annual inspection. Landing was normal on XXR - on rollout; tower controller instructed to exit at rwy X or at end and contract ground. I confirmed the instruction and continued rollout. Rollout started normally; rwy XXR is downhill (1.3%); past the half-way point; I added gentle braking. At approximately 2/3; I added more braking and noticed less than normal efficacy of brakes. I increased braking and ended up putting nearly maximum pressure on the brakes to complete a stop before the end of the runway. At essentially the very end of the pavement; I completed a 90 deg turn to exit XXR. I would estimate the left main was only 1-2 feet from the pavement end of runway. I then exited the runway and proceed to taxi on [Taxiway] 1 - making a rt turn onto 1 then an immediate left to the ramp. At this point; I realized I had not contacted ground for a clearance to taxi on 1. After the close call to stop on the runway and experiencing appreciably less braking reaction than anticipated; I began to troubleshoot the possibility that after brake replacement at annual; the brake pads and/or rotor may have been somewhat glazed and the difficulty of braking could have been partially due to the new pads. I did not hear from tower and had not yet switched my radio to ground frequency until after I had taxied to the ramp and realized I had not contacted ground as instructed. I continued to taxi to the hangar and then after shutdown I contacted tower on the radio to inquire if I could call them on the phone. Tower accommodated and provided the phone number. I then fully shutdown and placed the phone call and left msg with tower admin specialist giving my name; number; and brief purpose for my call.In being pre-occupied with the close call and diagnosis of the less than normal braking response; I failed to follow the instruction to switch to ground. While there was no other taxiing traffic and only a very short taxi from runway to [the] ramp I still failed to comply with tower instruction to contact ground.