Fix some logic on villager poi max attempts

Hopefully will help #3462

Spigot-Server-Patches/Optimize-Villagers.patch

@@ -79,14 +79,13 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +                            ++poiAttempts;
 +                            PathEntity pathentity = entitycreature.getNavigation().a(com.google.common.collect.ImmutableSet.of(pos), 8, false, this.a.d());
 +
-+                            if (poiAttempts <= maxPoiAttempts && pathentity != null && pathentity.h()) {
++                            if (pathentity != null && pathentity.h()) {
 +                                record.decreaseVacancy();
 +                                GlobalPos globalPos = GlobalPos.create(worldserver.getWorldProvider().getDimensionManager(), pos);
 +                                entitycreature.getBehaviorController().setMemory(this.b, globalPos);
 +                                break OUT;
 +                            }
-+                            if (poiAttempts > maxPoiAttempts) {
-+                                this.e.long2LongEntrySet().removeIf((entry) -> entry.getLongValue() < this.d);
++                            if (poiAttempts >= maxPoiAttempts) {
 +                                break OUT;
 +                            }
 +                        }
@@ -94,6 +93,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +                }
 +            }
 +        }
++        // Clean up - vanilla does this only when it runs out, but that would push it to try farther POI's...
++        this.e.long2LongEntrySet().removeIf((entry) -> entry.getLongValue() < this.d);
 +        /*
          Predicate<BlockPosition> predicate = (blockposition) -> {
              long j = blockposition.asLong();

Spigot-Server-Patches/Use-more-reasonable-thread-count-default-for-bootstr.patch

@@ -13,7 +13,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
  
      private static ExecutorService k() {
 -        int i = MathHelper.clamp(Runtime.getRuntime().availableProcessors() - 1, 1, 7);
-+        int i = Math.min(8, Math.max(Runtime.getRuntime().availableProcessors() - 2, 3)); // Paper - use more reasonable default - 2 is hard minimum to avoid using unlimited threads
++        int i = Math.min(8, Math.max(Runtime.getRuntime().availableProcessors() - 2, 2)); // Paper - use more reasonable default - 2 is hard minimum to avoid using unlimited threads
 +        i = Integer.getInteger("Paper.WorkerThreadCount", i); // Paper - allow overriding
          Object object;